"Histology Lab Tissues are groups of cells with similar shape and function. The purpose of this lab is to give you experience looking at and identifying tissue slides taken from areas all over the body. Epithelium 1. What is the primary purpose of all epithelial tissue? 2. Besides skin, give two examples of different body "surfaces" that are exposed to the outside environment and would need a lining of epithelium. 3. Label the following as squamous, cuboidal, or columnar."
Answers
Answer:
1. The primary purpose of all epithelial tissue is to cover the different body surfaces, this includes cavities that are not in contact with the exterior and parts of the body that are in contact with the exterior.
2. Tongue and esophagus.
3. The images with the types of epithelium are attached.
Explanation:
The main purpose of epithelial tissue is to cover all the surfaces of our body. These are the cavities, and the parts that are in contact with the exterior. They create barriers that protect the body, secrete, absorb substances, allow the passage of specific elements, and stop the entrance of others. The functions vary according to where the tissue is in the body.
The tongue, as it is in contact with the exterior and with the food that enters our mouth, it has a stratified squamous epithelium. The thickness of this epithelium protects it against the different things that can damage or enter through it.
The esophagus has a nonkeratinized stratified squamous epithelium that protects the esophagus from the damage, that food or antigens may cause.
Squamous epitheliums have cells with a not specific shape that has their nucleus in the center.
Cuboidal epithelial have lined cells with a cuboidal shape.
Columnar epithelial have lined cells with a rectangular shape, and their nucleus is near the basal region.
Related Questions
Which action can humans take to reduce wave erosion?
Answers
An endothermic reaction is a process
that absorbs heat and energy. An
endothermic reaction causes the
temperature of the system to______________
Answers
Answer:
If the system is the reactants/products, the temperature would increase.
If the system is the surroundings in which the reaction is occuring, the temperature would decrease.
Explanation:
If I helped, a brainliest answer would be greatly appreciated!
How does fruit produced on an
angiosperm benefit the animals and the
plants?
A. The fruit helps the plant by attracting animals that will
bring in pollen.
B. It provides food to the animals and helps the plant
spread its seeds.
C. It creates protection for smaller animals and helps
nourish the seeds inside the fruit.
Answers
Answer:
B
Explanation:
Angiosperms, or flowering plants, produce fruit as a way to attract animals, such as birds and mammals, to eat the fruit and disperse the seeds contained within. This helps the plant to spread its genes to new areas and increases the chances of successful reproduction. The animals that eat the fruit also benefit by obtaining a source of food. In addition, the production of fruit can also provide protection for smaller animals, such as insects, that may seek shelter inside the fruit.
Sienna decides to study movement in plants. Identify the correct sequence of the scientific steps, and place the steps in order.
She developed a
hypothesis that
plants move toward light.
Over six weeks, both
plants grew toward their
available light source.
She put one plant near
the window and another
in a dark room with a
small opening that let
light come through.
Every few days she
checked the plants
and recorded the
direction of their
growth.
Answers
1. Develop a hypothesis: Sienna hypothesized that plants move toward light. 2. Set up the experiment: Sienna placed one plant near a window and another in a dark room with a small opening that allowed light to come through. 3. Observe and record: Sienna checked the plants every few days and recorded the direction of their growth. 4. Analyze the data: Sienna examined the recorded data to determine the direction of growth for each plant over the six-week period. 5. Draw conclusions: Based on the data analysis, Sienna drew conclusions about whether the plants moved toward the available light source or not.
1. Sienna developed a hypothesis that plants move toward light. This is the initial step where she formulates her prediction based on prior knowledge or observations.
2. Sienna set up the experiment by placing one plant near a window and another in a dark room with a small opening that allowed light to come through. This step ensures that there are two distinct conditions to compare the plant growth.
3. Every few days, Sienna checked the plants and recorded the direction of their growth. This step involves making regular observations and documenting the changes in plant growth over time.
4. After six weeks, Sienna gathered all the recorded data, which included the direction of growth for each plant. This data would serve as the basis for further analysis.
5. Sienna analyzed the data by examining the recorded observations. She compared the direction of growth for each plant and looked for patterns or differences between the plant near the window and the one in the dark room.
6. Based on the data analysis, Sienna drew conclusions about whether the plants moved toward the available light source or not. This step involved interpreting the data and determining if the hypothesis was supported or refuted by the evidence gathered from the experiment.
By following this sequence of steps, Sienna was able to study movement in plants and draw conclusions about their response to light.
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How would you explain the key concepts for the CWA in less than two minutes?
Answers
Answer:
Explanation:
vPoint Source - a source of water discharged to surface water through a discrete point - generally through a pipe, ditch, or channel.
Nonpoint Source - Nonpoint sources, such as parking lots or athletic fields, discharge runoff water to groundwater or surface water; runoff does not come from a pipe, ditch, or channel. These sources may contain pollutants such as pesticides, motor oil, and soaps.
Navigable Waters of the United States For the purposes of the Clean Water Act, the term "navigable waters" includes:
all waters used in commerce, including groundwater;
all interstate waters including wetlands, mudflats, and sand-flats; and
all other waters such as lakes, rivers, streams, wetlands and sloughs.
EPA policy states, "The majority of facilities in the U.S. have the potential to discharge to navigable waters." The Supreme Court decision in (2006) requires the Army Corps of Engineers and the EPA to determine whether there is a "significant nexus" between a navigable waterway and an area a spill might affect. In June of 2007, EPA and the Army Corps of Engineers released provisional interpretive guidance regarding the "significant nexus” question. According to this guidance, the agencies will assert jurisdiction over traditional navigable waters, wetlands adjacent thereto, and relatively permanent tributaries thereof. The agencies will generally not assert jurisdiction over swales and ditches that lack routine water flow. Finally, the agencies will apply the "significant nexus" requirement and make a case-by-case, fact-specific analysis on impermanent tributaries and other wetlands.
Additional executive orders were issued 2015 in 2019. Under the 2019 proposal, traditional navigable waters, tributaries to those waters, certain ditches, certain lakes and ponds, impoundments of jurisdictional waters, and wetlands adjacent to jurisdictional waters would be federally regulated. It also details what are not "waters of the United States," such as features that only contain water during or in response to rainfall (e.g., ephemeral features); groundwater; many ditches, including most roadside or farm ditches; prior converted cropland; stormwater control features; and waste treatment systems.
Could the requirement for one or more NPDES Discharge Permit apply to my campus?
If your campus discharges pollutants directly to navigable waters of the United States through a point source, you must obtain an NPDES permit or redirect the flow of the waste.
Stormwater releases from certain activities require an NPDES permit. The most common activities on college campuses requiring NPDES permits for stormwater are construction activities disturbing more than 1 acre, hazardous waste storage areas operating under the Resource Conservation and Recovery Act permit system, steam-generating power plants, and airports. See Stormwater section below.
Regulations issued by local water authorities, or Publicly Owned Treatment Works (POTWs), not NPDES permits, govern discharges into sanitary sewer systems. See Sewer Use (POTW) section below for more information about requirements for using POTWs for commercial or industrial waste disposal.
What do I have to do related to NPDES Discharge Permits?
Determine where wastewater flows from buildings and processes on your campus. Any industrial or commercial operation (e.g., ice rink melt pits, floor drains, and vehicle wash stations) that discharge into a water of the United States may require an NPDES permit. If required, you must obtain such a permit from the appropriate regulatory agency, probably your state environmental agency.
French drains, dry wells, and septic system leach fields are different from point source discharges because they do not immediately affect surface water. Some state and federal environmental agencies manage these systems under the Underground Injection Control program, part of the Safe Drinking Water Act. See Safe Drinking Water Act for more information.
Details of NPDES
The video focuses on the lac operon, but there are others. For example, E. coli also have the trp operon, which has genes that code for enzymes necessary for synthesizing tryptophan, an amino acid necessary for protein synthesis. Like the lac operon, the trp operon has multiple genes under the control of one promoter.
Operons can be either inducible or repressible. Inducible and repressible operons share some characteristics, but they are different in key ways. Can you identify whether the lac and trp operons are inducible or repressible?
Sort each phrase to the appropriate bin.
Answers
a). The trp repressor protein is inactive, thus that is the right response. b). The promoter can be bound by RNA polymerase,
A trp operon is a collection of genes that code for the enzymes needed to synthesize the amino acid tryptophan. When tryptophan is present in low concentrations, the trp operon is active; conversely, when tryptophan is present, the trp operon is inactive. This is because it is a repressor protein and attenuation (coupled transcription and translation) controlled mechanism.
When tryptophan is present, the repressor binds to the operator of the DNA sequence, blocking the RNA polymerase's path and ending transcription. When tryptophan is absent, the repressor molecule is inactive and RNA polymerase can promote the transcription of genes after binding to the promoter sequence. Therefore, the right response is "inactive and promoter."
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What 3 adaptions make reptiles able to live on land( tough, thick skin is already be put on the answer)?
Answers
Answer:
1. Their lungs allow them to breathe air on land.
2. The ones that lay eggs, lay eggs with either hard or leathery shells to survive on land.
3. They have the ability to brumate if the temperature is too cold.
Explanation:
Adaptations for land.
what is the meaning of involuntary action
Answers
Involuntary actions is when something happens unintentionally or without a person's conscious control, it is said to be occurring involuntarily
What is Involuntary actions?When something happens unintentionally or without a person's conscious control, it is said to be occurring involuntarily. Usually, the autonomic nervous system or reflexive reactions control these actions.
In contrast to voluntary acts, which may be controlled consciously, involuntary actions occur without conscious thought or intentional decision-making.
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what is the smallest cell and the biggest cell? Properties of life
Answers
Answer:
The smallest cell in humans is a sperm cell and the largest cell is the egg cell.
Explanation:
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You are studying a disease that is caused by a virus, but when you purify the virus particles and analyze them you find they contain no trace of DNA. Which of the following molecules are likely to contain the genetic information of the virus?
(a) high-energy phosphate groups
(b) RNA
(c) lipids
(d) carbohydrates
Answers
All viruses have a genome, or genetic material, consisting of nucleic acids. DNA serves as the genetic building block for all cell-based life, including you.
Genetic composition Conversely, viruses can make use of RNA or DNA, both of which are subtypes of nucleic acid.Due to the fact that our own cells usually have double-stranded DNA and single-stranded RNA, we frequently think of them as such. Yet viruses are capable of having any imaginable combination of strandedness and nucleic acid type (double-stranded DNA, double-stranded RNA, single-stranded DNA, or single-stranded RNA). Viral genomes can also have many different forms, sizes, and types, albeit they are typically much smaller than the genomes of cellular creatures. It's important to note that DNA and RNA viruses always have the same genetic makeup as living cells.For more information on genetic composition of virus kindly visit to
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which measurement is likely the least accurate? Explain.
What observations and/or patterns do you see in the data?
Answers
Based on the information, we can infer that the measurement that could be the least probable is caudal peduncie depth strandard error. Also, the trend is for lake values to be higher than river values.
What difference do we see in the values in the table?To identify the values we must analyze the table and identify they are not the trends. In this case we can infer that the tendency is for the values of the lake to be higher than the values of the river because all the values of the lake are higher than those of the river.
On the other hand, we can infer that the value that could be the least successful is the peduncie depth strandard error because it shows equal values. However, if we take into account the previous values, it should not be the same in both cases.
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What is the pattern for speciation
Answers
Answer:
There is two. Geographic separation (allopatric speciation) and through mechanisms that occur within a shared habitat (sympatric speciation)
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Question 2 of 10
Which sustainable building practice does the photograph show?
Answers
Answer:
B
Explanation:
A doesn't make sense
c at night plant use oxygen and not carbon
BIOLOGY HELP PLEASE 30 POINTS
SEE IMAGE BELOW
Answers
Answer:
please explain what you want to know about this
Explanation:
Problem B: Diabetes is a disease affecting the insulin producing glands of the pancreas. If there is not enough insulin being produced by these cells, the amount of glucose in the blood will remain high.
Answers
Diabetes is a disease that occurs when the pancreas doesn't produce enough insulin, resulting in high blood glucose levels.
Diabetes is a medical condition that impacts the insulin-producing glands of the pancreas. The pancreas plays a crucial role in regulating blood glucose levels by producing insulin. Insulin allows glucose to enter cells, providing them with energy. In diabetes, insufficient insulin production leads to elevated levels of glucose in the bloodstream, a condition known as hyperglycemia.Without enough insulin, glucose cannot be effectively transported into cells, resulting in its accumulation in the bloodstream. This leads to persistent high blood glucose levels, which can have various detrimental effects on the body over time. Complications of uncontrolled diabetes may include damage to blood vessels, nerves, and organs.Managing diabetes typically involves interventions like insulin therapy, medication, dietary adjustments, and lifestyle modifications to regulate blood glucose levels and minimize associated complications. Regular monitoring and appropriate management are crucial to maintaining optimal blood glucose control and overall well-being for individuals with diabetes.For more such questions on Diabetes:
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Miss treatment or blank is defined as any action that inflicts pain suffering or injury
Answers
Mistreatment or ill-treatment is defined as any action that inflicts pain, suffering, or injury.
The cardiac tissue has fewer T tubules and store less calcium than skeletal muscle. What is the outcome of these two traits
Answers
Answer:
The slow arrival of contraction or the slow onset of contraction.
Explanation:
The T tubules function in the transformation of the action potential from the sarcolemma to the sarcopasm reticulum.
In the skeletal muscles, it is located at the junction of the A and I bands but in the cardiac muscles, it is located only at the z discs thus giving rise to to T tubules.
The cardiac muscles also do not possess as much calcium as the skeletal muscles thus, its calcium ion must come from outside producing the slow arrival of contraction or the slow onset of contraction.
The cardiac tissue has fewer T tubules and stores less calcium than skeletal muscle, thereby the onset for muscle contraction is SLOWER in the heart than in skeletal muscle.
The sarcolemma is the plasma (excitable) membrane of muscle cells, which are surrounded by endomysial connective tissue.The T-tubules are invaginations of the sarcolemma that enter into the muscle cell in order to form interconnected networks.These tubules (T tubules) store intracellular calcium ions under the supervision of membrane depolarization through a voltage sensor channel (i.e., DHPR).In conclusion, the cardiac tissue has fewer T tubules and stores less calcium than skeletal muscle, thereby the onset for muscle contraction is SLOWER in the heart than in skeletal muscle.
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Is digestion the process which releases the usable energy from food?
I’m really stumped by this.
Answers
Explanation:
Digestion does not really release the unusable energy. It releases the unusable waste that we eat after absorbing the excess water in the large intestine. The waste comes out from the anus.
Answer:
Digestion does not replace food it is the kidney that removes some foods that does not have vitamins from them so Digestion helps people swallo their food
Use your codon chart to determine the amino acid sequence. Remember to read through the strand and ONLY start on AUG and STOP when you reach a stop codon (UGA, UAA, or UAG). Follow the example in the box. Abbreviate the proteins using the first three letters of the amino acid name.
Answers
Methionine (AUG)Amino acids can be abbreviated using the first three letters of their name.
Methionine can be abbreviated as Met.
The given RNA sequence is AUGUAACGAUGCGUCGUGGCAUCAUGCUGCGUCAGCGGCGAGUCUGACCCGUCUCUAACAGGACGGCCGGGCGUUGUCGUUGA.
We can use the codon chart to determine the amino acid sequence.
The codon chart is used to determine which amino acid is coded by a particular codon in a strand of DNA/RNA.A codon is a sequence of three nucleotides in DNA or RNA that encodes for a specific amino acid.
Each codon codes for a different amino acid.
For example, the codon AUG codes for the amino acid methionine.
To determine the amino acid sequence, we start reading the RNA strand from the start codon AUG and continue reading until we reach a stop codon (UGA, UAA, or UAG).
Then we write down the amino acid sequence for the codons we read, using the codon chart.
Here, the sequence starts with AUG, which codes for methionine.
After that, the next codon is UAA which is a stop codon, so we can stop.
The amino acid sequence is therefore Methionine. So, the answer would be Methionine (Met).
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Type the correct answer in the box. Spell all words correctly.
What is a close relationship between two organisms that live together called?
The close relationship between two organisms that live together is called
Reset
Next
Answers
Answer:
symbiosis.
Explanation:
The term that you are referring to is symbiosis. (a symbiotic relationship)
Symbiosis is a proximate and often long-term interaction between two or more different biological species.
what type of materials are expelled from cells during exocytosis
Answers
Answer:
During exocytosis cells expel a variety of materials including waste products, toxins and large molecules such as hormones, proteins and neurotransmitters into the extracellular environment.
Explanation:
Waste Products, Toxins, and large molecules like hormones, proteins and neurotransmitters
What are bonds formed between different bases
Answers
The nucleotides in a base pair are complementary which means their shape allows them to bond together with hydrogen bonds. The A-T pair forms two hydrogen bonds. The C-G pair forms three. The hydrogen bonding between complementary bases holds the two strands of DNA together
what are 3 requirements for a trait to become more common over time in a population ?
Answers
The three requirements for a trait to become more common over time in a population area;
inbreeding among the populationno random selection of genesno immigration of species occurWhat are traits?Traits are qualities or characteristics that are shared between living organisms as a result of the transfer of these traits from parents to offspring.
Traits are determined by genes.
Genes are the basic unit of inheritance. Genes are regions of DNA that code for a particular product.
The combination of the genes present in an organism is responsible for the traits that are observed in organisms.
The combination of genes in an organism is known as the genotype whereas the observable traits in an organism is known as the phenotype.
Genes for a particular trait in an organism have alternate forms known as alleles. When an organism has similar copies of the allele for a trait, the organism is said to be homozygous for that trait, but when an organism has different alleles for a trait, the organism is said to be heterozygous for that trait.
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How did the plant cells differ from the bacteria and protistan cells? Size? Color? Shape? Nucleus or other organelles visible?
Answers
Size: Plant cells are generally larger than bacterial and protistan cells. Most plant cells range from 10 to 100 micrometers in size, while bacterial cells are typically between 0.5 and 5 micrometers and protistan cells can vary greatly in size, ranging from 2 micrometers to over a millimeter.
Color: Plant cells contain chloroplasts, which give them a green color due to the presence of chlorophyll. Bacterial and protistan cells do not contain chloroplasts and therefore do not have a green color.
Shape: Plant cells are typically rectangular or square-shaped, while bacterial and protistan cells can have a variety of shapes including spherical, rod-shaped, or spiral-shaped.
Nucleus or other organelles visible: Plant cells have a well-defined nucleus that is visible under a microscope. They also contain other organelles such as mitochondria, endoplasmic reticulum, and Golgi apparatus. Bacterial cells do not have a nucleus but instead have a single circular chromosome that is located in the cytoplasm. They may also contain other structures such as ribosomes, plasmids, and flagella. Protistan cells may or may not have a well-defined nucleus depending on the species, but they do contain other organelles such as mitochondria, lysosomes, and vacuoles.
Plant cells differ from bacteria and protistan cells in several ways, including size, shape, and the presence of certain organelles.
Size: Plant cells are generally larger than bacterial cells and some protistan cells, but can vary widely in size depending on the specific type of plant cell. For example, a typical plant cell may be around 10-100 micrometers in diameter, while bacterial cells are generally smaller, ranging from 0.5-5 micrometers in diameter.
Shape: Plant cells have a fixed shape that is determined by their cell walls, which provide support and protection for the cell. Bacterial cells and some protistan cells do not have cell walls, and their shape can vary widely depending on the type of cell.
Nucleus and organelles: Plant cells, like other eukaryotic cells, have a distinct nucleus and a variety of organelles that perform specific functions within the cell. These organelles include the endoplasmic reticulum, Golgi apparatus, mitochondria, and chloroplasts. Bacteria and many protistan cells, on the other hand, do not have a distinct nucleus or membrane-bound organelles.
Color: Plant cells are typically green due to the presence of chloroplasts, which contain the pigment chlorophyll. Bacteria and protistan cells do not have chloroplasts and are typically colorless, although some may have other pigments that give them a specific color.
In summary, plant cells differ from bacteria and protistan cells in terms of size, shape, the presence of distinct organelles, and color.
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50 POINTS! HELP :D!!!
Carbohydrates are associated with several organelles in eukaryotic cells, particularly the Cell Wall, Cell Membrane, Chloroplast, Vacuole, and Smooth ER. Explain the relationship between each of the organelles listed above and carbohydrates.
Answers
The cell wall is composed of cellulose and pectin, cell membrane glycolipids and glycoproteins, chloroplast synthesize glucose, vacuole starch, and Smooth ER glycolipids.
What is the cell wall?The cell wall is a structure in plant cells that contain different carbohydrates such as cellulose and pectin, while the cell membrane contains glycolipids and glycoproteins.
Moreover, the chloroplasts synthesize a simple carbohydrate called glucose via photosynthesis, while vacuole stores starch and smooth ER is the processing center of glycolipids.
In conclusion, the cell wall is composed of cellulose and pectin, cell membrane glycolipids and glycoproteins, chloroplast synthesize glucose, vacuole starch, and Smooth ER glycolipids.
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Which principle is Hamilton describing in this quote? A federalism B limited government Crepublicanism D separation of powers.
Answers
Hamilton is referring to the federalism principle in this passage. The combined and compound form of government known as federalism incorporates a federal constitution.
Describe federalism:Federalism, essentially refers to the distribution and distribution of authority between the provincial and the government governments, is just another fundamental idea incorporated in the Constitution. Aside from federalism, the Original constitution core values are bicameralism, balance of powers, and a separation of powers. Federalism allows for several governmental tiers.
The benefits of federalism:Federalism promotes political engagement. Federalism encourages economic justice across the country. Numerous different viewpoints are permitted by federalism. Seven core principles serve as the foundation of the Constitution. They are autonomy, reduction in government, accountability mechanisms, democratic governance, economic liberalism, and individual liberty.
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You are working on research involving competition between animals. Which of the following resources do you not need to measure?
A. Light
B. Space
C. Water
D. Food
Answers
Have a nice day :)
e:
Scientists think the earth is approximately how old?
2 billion years
3 billion years
for 4 12 billion years
612 billion years
Scientists think the earth is approximately how old
Answers
Answer:
4 billion
Explanation:
Answer:
4 billion
Explanation:
4 billion
Which structure contains the instructions used to build one specific protein
Answers
mRNA is the molecule that carries genetic information transcripted from DNA in the nucleus to the cytoplasm, where it meets rRNA and tRNA and protein synthesis occurs through translation. mRNA is the structure that contains the instructions used to build one specific protein.
What is mRNA?
mRNA is one of the ribonucleic acids -together with rRNA and tRNA- and it means messenger RiboNucleic Acid.
This molecule is a carrier of genetic information and is in charge of transporting it from the genome to the ribosomes. It is the mold for the new protein synthesis.
This molecule is synthesized in the nucleus during the transcription process. Their nucleotide sequence is complementary with the nucleotide sequence of a particular DNA segment.
Once its synthesis is completed, mRNA moves to the cytoplasm where it meets rRNA and tRNA that read the genomic information and add amino acids to build the new protein. This process is known as translation.
mRNA is the structure that contains the instructions used to build one specific protein.
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the elements are located in certain groups and families based on their
Answers
The elements are located in certain groups and families based on their Similar chemical behavior because they have the same number of valence electrons and similar chemical properties.
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