The cellular junctions that are physically linked with the cytoskeleton are adherens junctions, desmosomes, and hemidesmosomes.
Cell junctions are structures that connect adjacent cells in the tissues of an animal organism. Cellular junctions perform a variety of functions, including cell-cell communication, tissue maintenance, and differentiation, among others.Cell junctions can be classified into three categories: Adherens junctions, Desmosomes, and Hemidesmosomes. These three categories of cell junctions are physically linked to the cytoskeleton and have significant functions in connecting cells and tissues together.
Desmosomes: Desmosomes are intercellular junctions that are formed by transmembrane proteins called desmosomal cadherins. Desmosomes are responsible for connecting cells and stabilizing the tissue structure. Desmosomes can also interact with the intermediate filaments in the cytoskeleton to provide a mechanical link between cells.Hemidesmosomes: Hemidesmosomes are cellular junctions that are responsible for connecting cells to the extracellular matrix. Hemidesmosomes are composed of transmembrane proteins such as integrins and connect the intermediate filaments of the cytoskeleton to the basal lamina of the extracellular matrix.
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if a pollen spore is unable to carry s proteins in its pollen coat, can plants still prevent the germination of this pollen if it is too genetically similar?
Plants have evolved various mechanisms to prevent self-fertilization and to promote outcrossing, which can increase genetic diversity and increase the fitness of the offspring. One mechanism is the prevention of germination of genetically similar pollen.
Plants' ability to avoid self-fertilization has been linked to the pollen coat's S-protein content. These proteins adhere to the female stigma, where the plant's self-incompatibility mechanism detects them. The self-incompatibility system will block pollen germination if it determines that the pollen and the female plant are too genetically similar.
However, the plant's self-incompatibility system might not be able to identify a pollen spore as being too genetically similar if it is unable to contain S-proteins in its pollen coat. In this situation, it's possible that the pollen will grow, fertilize the ovules, and cause self-fertilization.
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I need help I don't understand this question at all can anybody that is in Earth space science help me on this question and explain it because I don't get it
Answer:
Explanation:
58:25
Jasmine and Marcus are at the park, and Jasmine makes the following statements. Which of them is an inference?
The leaves are green.
The flowers are breathtaking.
The plant is producing oxygen.
The bush has thorns.
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Answer:
The flowers are breathtaking.
Explanation:
The leaves are green is an observation. The plant producing oxygen is a scientific fact. The bush having thorns is also an observation.
On the other hand, the flowers being breathtaking is simply a matter of opinion. So, it is an inference.
Hope this helps!
This happens when water gets absorbed into the ground and gets stored in the underwater
aquifers.
Helppp
Answer:
Infiltration occurs
Explanation:
When water gets absorbed into the ground and gets stored in the underwater aquifers, infiltration has occurred.
An aquifer is a porous and permeable formation within the earth surface which allows for the storage of ground water. The process of infiltration is a very important in the water cycle. This allows for surface water to enter the ground water system. The bulk of the ground water recharge is by infiltration. Most ground water sources are reservoirs for freshwater.What does it mean when we say that replication is a Semi-Conservative process?
Answer:
Semiconservative replication describes the mechanism of DNA replication in all known cells. ... This process is known as semi-conservative replication because two copies of the original DNA molecule are produced, each copy conserving (replicating) the information from one half of the original DNA molecule.
Do you think percent daily value (% DV) is a useful tool, even for people who don't consume a 2,000 calorie diet? Explain
your response
Answer:
Yes because it gives off a sense of how high a particular food is, or the oppostite, how low it is for a specific nutrient.
Explanation:
This is the sample answer but reworded so no one gets striked for cheating. the answer above is the sample answer.
Hope this helps :3
Yes, the percent daily value (% DV) is a useful tool, even for people who don't consume a 2,000-calorie diet.
What is the percent daily value?The percent daily value may be defined as the value which is usually calculated by dividing the amount in a serving by the total recommended daily amount.
It indicates the value of each nutrient in a serving of the food specifically. It gives an idea to the person how more he/she is already taken in terms of calories or may be short with respect to daily recommendation limits.
Therefore, it is well described above.
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Reactionate
Reaction me
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Image Courtesy of 3DScience.com
The graph above shows the progress of an enzyme-catalyzed chemical reaction. Based on the graph this enzyme
is minimally active between pH 5-7
O works optimally between pH 5-7
O is minimally between pH 0-3
O works optimally between pH 0-3
Answer:
is minimally active between pH 5-7
i took the test
Which of the following is the best definition of an unsaturated fatty acid? 8 A. A basic unit of a lipid that consists of single and double carbon-to- carbon bonds B. A compound that carries hereditary information C. An insoluble compound made up of glycerol and three fatty acids D. A basic unit of a lipid that consists of only single carbon-to-carbon bonds
Fully explain how multiple hormones are used to control the rate at which glucose is consumed during cellular respiration.
Insulin and glucagon are two hormones secreted by the pancreas involved in glucose metabolism.
insulin is secreted by the beta cells of the islets of Langerhans and contributes to lowering blood sugar levels. In this case, insulin causes the body's cells to absorb blood glucose in order to reduce it.
while glucagon is secreted by the alpha cells of the islets of Langerhans and contributes to the increase in blood glucose concentration. In this case, glucagon stimulates the liver to release glucose into the bloodstream.
since insulin is secreted when there is a lot of glucose in the blood and glucagon when there is little sugar in the blood, these two mechanisms are opposite and regulate each other, to achieve homeostasis or balance in the organism.
Which of the following statements about Cnidarians and Ctenophores are accurate? (Select all that apply) Ctenophores are filter feeders whereas cnidarians are carnivores Cnidarians have an incomplete digestive system whereas ctenophores have a complete digestive system Both cnidarians and ctenophores produce and utilize cnidocytes for prey capture Ctenophores swim using comb rows whereas cnidarians typically swim using muscle contractions A hydra or sea anemone displays the body form whereas a jellyfish displays the body form. polyp/ medusa Omedusa/ polyp O polyp/ polyp medusa/ medusa What are the cnidocytes? specialized flagellated cells for water movement through the cnidarian body specialized ciliated cells that help the animal swim specialized adhesive cells used in feeding specialized cells with threadlike filaments that function in prey capture and defense specialized excretory cells for waste removal
The correct statements are:Ctenophores are filter feeders whereas cnidarians are carnivores.Cnidarians and Ctenophores are two phyla of animals in the Kingdom Animalia that exhibit significant diversity in form and lifestyle.
Cnidarians and Ctenophores both produce and use cnidocytes for prey capture. Cnidocytes are specialized cells with thread-like filaments that function in prey capture and defense.Both cnidarians and ctenophores exhibit two distinct body forms: a polyp and a medusa. A hydra or sea anemone displays the body form whereas a jellyfish displays the medusa body form.
Ctenophores swim using comb rows whereas cnidarians typically swim using muscle contractions.Cnidarians have an incomplete digestive system, whereas ctenophores have a complete digestive system.
The correct statements are:Ctenophores are filter feeders whereas cnidarians are carnivores.Cnidarians have an incomplete digestive system whereas ctenophores have a complete digestive system.Both cnidarians and ctenophores produce and utilize cnidocytes for prey capture.
Ctenophores swim using comb rows whereas cnidarians typically swim using muscle contractions.A hydra or sea anemone displays the polyp body form whereas a jellyfish displays the medusa body form.The correct answer is option A, C, D, and E.
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Which part of the plant cell absorbs the energy needed for the process
Answer: chloroplasts
Explanation:
A deoxyribose sugar, phosphate group, and a nitrogen containing base (A,C,T,G) make up a the monomer of dna
A deoxyribose sugar, phosphate group, and a nitrogen- containing base (A,C,T,G) make up a the monomer of DNA. (True)
What is deoxyribose sugar?Aldοpentοse sugar with an aldehyde group attached is called deoxyribose. This aids the enzymes in the body's ability to distinguish between ribonucleic and deoxyribonucleic acid. Deoxyribose's byproducts play a significant part in biology.
All forms of life derive their genetic information primarily from their DNA. Adenine, thiamine, guanine, and cytosine are among the bases that make up DNA nucleotides.
Life itself, as well as technology and culture, depend on chemical reactions in some fundamental way. Chemical reactions were used in many prehistoric processes, including the burning of fuels, the smelting of iron, the production of glass and pottery, the brewing of beer and wine, and the production of cheese. Chemical reactions are prevalent in the geology, atmosphere, oceans, and a wide range of intricate processes that occur in all living systems on Earth.
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Complete question:
State whether the given statement is true or false.
A deoxyribose sugar, phosphate group, and a nitrogen- containing base (A,C,T,G) make up a the monomer of DNA.
what is difference between MYOCARDIAL INFRACTION and ANGINA PECTORIS ?
Explanation:
myocardial infraction is also known as heart attack and it is the blockage of blood flow to the heart muscles
while
angina pectoris is also known as ischemic chest pain and it is a type of chest pain caused by reduced blood flow into the heart
The client who has been diagnosed with Type 2 diabetes is seen at the clinic for complaints of a wound on his foot that will not heal. Assessment findings include a wound with purulent discharge. Why are diabetic clients at increased risk for infection? (Select all that apply) Vascular changes reduce blood flow to extremities. Vascular changes lead to increased gas exchange in the tissues
Decreased peripheral sensation reduces recognition of early warning signs High blood glucose levels reduce WBC activity increased blood glucose promotes growth of microorganisms
Diabetic clients are at increased risk for infection due to vascular changes that reduce blood flow to extremities, decreased peripheral sensation that reduces recognition of early warning signs, and high blood glucose levels.
Diabetic clients are prone to various complications, including an increased susceptibility to infections. Several factors contribute to this increased risk. Vascular changes associated with diabetes, such as atherosclerosis, can lead to reduced blood flow to the extremities. Poor blood circulation impairs the delivery of immune cells and necessary nutrients to the site of an infection, making it difficult for wounds to heal and increasing the risk of infections.
Additionally, diabetes can cause peripheral neuropathy, leading to decreased sensation in the extremities. This sensory impairment can prevent individuals from recognizing early signs of infection, such as pain, warmth, or redness in a wound, delaying appropriate medical intervention.
High blood glucose levels, a hallmark of diabetes, can weaken the immune system. Elevated glucose levels impair the functioning of white blood cells, which play a crucial role in fighting off infections. Moreover, the presence of excess glucose in bodily fluids provides a favorable environment for the growth of microorganisms, further increasing the risk of infections.
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8. Explain why mammals have specialized excretary organs but plants do not have.
Answer:
(Hope this helps can I pls have brainlist (crown)☺️)
Explanation:
They consume food and they have much higher metabolism. That means that more waste products are produced. Plants can use much of the waste produced and it is in fact raw material. Animals don't normally produce their own chemicals from scratch like plants normally do so they can't just recycle the waste. They need to remove it. About the only waste plants need to get rid of is excess oxygen produced during the day. That is actually three reasons but recycling is related to plants not consuming but making their own chemicals from scratch. In a way it pretty much comes down to one main reason.
.
How does the seed of a gymnosperm differ from the seed of an angiosperm?
Answer:
The key difference between angiosperms and gymnosperms is how their seeds are developed. The seeds of angiosperms develop in the ovaries of flowers and are surrounded by a protective fruit. Gymnosperm seeds are usually formed in unisexual cones, known as strobili, and the plants lack fruits and flowers.
Answer:
Angiosperm seeds develop in the ovaries of flowers and are covered with a protective fruit. Gymnosperm seeds are typically formed in something called strobili, and the plants doesn't have fruit and flowers.
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True or false? constructive forces depend on earths internal heat for their source of energy
Answer:
True.
Explanation:
True, constructive forces depend on earths internal heat for their source of energy.
Hope this helps!
what are 3 events that led to the civil war?
Answer:
Economic and social differences between the North and the South.
States versus federal rights.
The fight between Slave and Non-Slave State Proponents.
Growth of the Abolition Movement.
Dred Scott Decision.
The election of Abraham Lincoln.
Explanation:
.
Does passive transport require energy? How does this relate to the concentration gradient? Name the 3 types of passive transport
Passive transport is a type of transport that does not require any energy for the transport of molecules as it occurs along the concentration gradient.
In the case of passive transport, there is no requirement of energy for transporting the molecules across as a membrane as it happens along the concentration gradient. All the molecules which are basically easily soluble get transported through this process of passive transport.
This process occurs in the cells in order to maintain the balance as well as the equilibrium level in the cells. Osmosis, facilitated diffusion as well as diffusion are three of the examples of passive transport.
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which zone in the ocean contains enough light for photosynthesis?
Answer:
The euphotic zone
The euphotic zone is the layer closer to the surface that receives enough light for photosynthesis to occur.
Which of the following is not a part of the digestive system
A. duodenum
B. spleen
The kidneys are situated immediately inferior and deep to which body part?
the stomach
the liver
the ribs
the spine
Answer: The Spine
Explanation:
The kidneys are situated immediately inferior and deep to the ribs body part. That is option C.
What is kidneys?The kidney is defined as the major organ of the urinary system of the body which is located retroperitoneal region of the abdomen (that is , behind the peritoneum).
The kidneys are situated below the diaphragm, one on either side of the spine. They are just below the rib cage.
Therefore, the rib cage can be said to be superior to the kidney organs in the abdomen.
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By measuring the height of the tortoise, this scientist is gathering what?
a.) independent variables.
b dependent variables.
c.) quantitative data.
d.) qualitative data.
extensions of dermis up into the epidermis tht are responsable for fingerprints are called
The extensions of dermis up into the epidermis that are responsible for fingerprints are called dermal papillae.
The skin is made up of the epidermis, dermis, and hypodermis layers.
The dermal papillae, which are also known as the papillary layer, is the outermost layer of the dermis.
The dermal papillae are responsible for creating the fingerprints that we all have.
The dermis and epidermis layers of the skin form folds, which results in the creation of dermal papillae. The skin's surface becomes rough, creating the ridges that are observed in fingerprints.
Dermal papillae are responsible for the formation of fingerprints, which are unique to each person. These fingerprints are formed while the fetus is developing in the womb, and they remain unchanged throughout the person's life. As a result, they are frequently used in forensic science to assist in identifying suspects.
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List three primary factors that contribute to the
abundance and diversity of organisms in the coral reef ecosystem (3
marks)
The factors that contribute to the abundance and diversity of organisms in the coral reef ecosystem are water temperature, sunlight, and water quality.
The water temperature plays an important role in the survival and growth of coral reef ecosystems. This is because coral is sensitive to changes in water temperature. The water temperature in the coral reef ecosystem should be between 20 and 28°C, which is ideal for the growth and development of coral reefs.
Sunlight is another crucial factor that contributes to the growth and development of coral reefs. It provides the energy needed for photosynthesis, which is essential for the growth of algae and coral. Without sunlight, coral and algae will die, and the ecosystem will collapse.
Water quality is important for the growth and development of coral reefs. High levels of nutrients in the water can lead to the growth of algae, which can block sunlight and prevent coral from growing. Pollution, such as oil spills or sewage discharge, can also have a devastating effect on coral reefs. Therefore, water quality must be monitored and maintained to ensure the survival and growth of the coral reef ecosystem.
Thus, water temperature, sunlight, and water quality are the primary factors that contribute to the abundance and diversity of organisms in the coral reef ecosystem.
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The animal cell pictured above is a lymphocyte. Describe the features that suggest to you that:
(a) It has a role in producing and secreting proteins:
(b) it is metabolically very active:
Animal cells have centrosomes (or a pair of centrioles), and lysosomes, whereas plant cells do not. Plant cells have a cell wall, chloroplasts, plasmodesmata, and plastids used for storage, and a large central vacuole, whereas animal cells do not.
Leymphocyte?E proteins operate in the immune system by guiding and maintaining a huge transcriptional network that controls cell survival, proliferation, differentiation, and function.They are members of the basic helix-loop-helix (bHLH) family of transcription factors. The immune system's proper operation depends on the proper operation of this network.E proteins are members of the basic helix-loop-helix (bHLH) family of transcription factors and function in the immune system by directing and maintaining a large transcriptional network that controls cell survival, proliferation, differentiation, and function.Aberrations in E protein expression or function can result in a variety of defects, ranging from impaired lymphocyte development and immunodeficiency to aberrant function, cancer, and autoimmune disease.The immune system's proper operation depends on the proper operation of this network.To learn more about Leymphocyte refer to:
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Alopecia, also known as __________, is the partial or complete loss of hair that occurs most commonly on the scalp.
Answer:
Baldness
Explanation: hair loss, or absence of hair. Baldness is usually most noticeable on the scalp, but can happen anywhere on the body where hair grows.
what are the products of cellular resparation
Answer:
The clarification of the hypothetical is outlined in the following portion.
Explanation:
Cellular respiration would be the predominant mechanism justification for transferring chemical resources, and perhaps the reagents/products associated with cell respiration have become glucose, CO2, and water. Although the basic functionalities responsible for cell oxygenation can vary from individual to individual, a few other sorts of cell respiration have always been performed by all living creatures.HELP!!!! what happens during photosynthesis?
A. Heterotrophs consume ATP.
B. Heterotrophs produce ATP.
C. Autotrophs consume organic molecules.
D. Autotrophs produce organic molecules.
Cells identical to original cell is it mitosis or meiosis
Mitosis
Explanation ~ Mitosis creates two daughter cells each having the same number and kind of chromosomes as the parent nucleus