One difference between the protostomes and deuterostomes is that only the deuterostomes evolved:____.
a. large terrestrial species.
b. adaptations needed for invasion of the land.
c. wormlike burrowing forms.
d. jointed appendages for improved locomotion.
e. structures for filtering food from water.
Answers
One difference between the protostomes and deuterostomes is that only the deuterostomes evolved adaptations needed for invasion of the land.
Protostomes are animals that possess a type of embryonic development where the first opening in development is the mouth. These are the most common type of multicellular animals and include many of the invertebrates. It includes Mollusca, Platyhelminthes, Annelida, Arthropoda, and other phyla.
Deuterostomes are animals that possess a type of embryonic development where the first opening in development is the anus. This is a characteristic that is present in Echinodermata, Hemichordata, and Chordata.
One difference between the protostomes and deuterostomes is that only the deuterostomes evolved adaptations needed for invasion of the land. Protostomes do not have the ability to invade land, so they remained in aquatic environments. Thus, deuterostomes evolved into vertebrates, which were able to move onto the land.
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Related Questions
What was the purpose of using CRISPR in the Anopheles gambiae mosquitoes experiment?Group of answer choicesTo find a way to lower mosquito populations in the wild and get rid of malaria in the future.The purpose of this experiment was to create a new disease like malaria.To find a way to lower mosquito populations in the wild and increase cases of malaria in the future.To find a way to increase mosquito populations in the wild and get rid of malaria in the future.
Answers
To find a way to lower mosquito populations in the wild and increase cases of malaria in the future the purpose of using CRISPR in the Anopheles gambiae mosquitoes experiment.
Why do humans get malaria?The malaria parasite, which is spread by infected mosquitoes, multiplies inside red blood cells after entering the human bloodstream. After a few days, these cells burst, infecting other red blood cells and resulting in symptoms such as a severe headache, nausea, vomiting, fever, and coma.
What causes malaria largely?A plasmodium-genus single-celled parasite, which causes malaria. Most frequently, mosquito bites are the means of parasite transmission to people.
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It’s A,B,C, and E
Good luck !!!
Answers
The statements that correctly describe the importance of meiosis to the life cycle or these organisms are:
A) Increasing genetic diversity ensures that no two haploid gametes are exactly the same.
B) Taking a diploid cell to its haploid state occurs during the first cell division of meiosis.
C) Checkpoints during meiosis ensures that chromosome separation occurs accurately, avoiding non-disjunction.
E) Reducing the number of chromosomes by half during meiosis ensures the chromosome number is maintained during fertilization.
Why meiosis is essential in sexual reproduction?In regards to the importance of meiosis in sexual reproduction, we need to understand that meiosis is the chromosomal reduction process that enables the formation of the haploid germ cells required for sexual reproduction.
It also plays a crucial function in promoting genetic variety and making it easier for recombination to correct genetic flaws.
Therefore, Meiosis is a type of cell division that results in the making of four gamete cells as well as the halving of the number of chromosomes in the parent cell. To develop egg as well as sperm cells for sexual reproduction, this process is necessary.
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See full question (image transcript) below
The process of meiosis is essential in the sexual reproduction and life cycle of many organisms. The outcome of meiosis is haploid gametes. Which statements correctly describe the importance of meiosis to the life cycle or these organisms? (Choose four options)
A) Increasing genetic diversity ensures that no two haploid gametes are exactly the same.
B) Taking a diploid cell to its haploid state occurs during the first cell division of meiosis.
C) Checkpoints during meiosis ensures that chromosome separation occurs accurately, avoiding non-disjunction.
D) DNA synthesis occurs before each cell division in meiosis ensures that the integrity of the chromosomes is maintained.
E) Reducing the number of chromosomes by half during meiosis ensures the chromosome number is maintained during fertilization.
Name the two types of muscle groups that are used in summation of force. Which muscle group is used first in a physical activity? name two muscles in each muscle group. What are the two muscle groups' functions?.
Answers
The two types of muscle groups that are used in summation of force are
Core muscles and
Quadricep muscles
Summation of force
The summation of force is the combination of the timing and sequencing of large muscles to form a small formidable muscle. the quadricep muscles are the largest muscles and are very much applicable in sporting activities such as Shot put.
Hence we can conclude that the two types of muscle groups that are used in summation of force are core muscles and quadricep muscles
draw and label one complete cell cycle
Answers
The cell cycle is comprised of the following steps: Mitosis (prophase, metaphase, anaphase, telophase) and cytokinesis follow interphase (G1, S, G2). During interphase, the cell prepares to divide, organelles duplicate, and DNA replicates in the S phase.
The cell cycle is a four-stage process during which the cell grows (gap 1, or G1), replicates its DNA (synthesis, or S), prepares to divide (gap 2, or G2), and divides (mitosis, or M, stage).
The cell cycle is divided into four stages: gap 1 (G1), synthesis (S), gap 2 (G2), and mitosis (M). A single cell cycle takes about 24 hours for most human cells.
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A firm has $820 in inventory, $3,200 in fixed assets, $1,210 in accounts receivable, $890 in accounts payable, and $360 in cash. What is the amount of the net working capital?
a. $4,700
b. $5,590
c. $3,600
d. $2,390
e. $1,500
Answers
The net working capital for the firm is $1,500, calculated by subtracting current liabilities from current assets, the correct option is (e).
To calculate the net working capital, you need to subtract the current liabilities from the current assets.
In a company's financial statements, the formula for calculating current assets can be expressed as the sum of inventory, accounts receivable, and cash.
Current Assets = Inventory + Accounts Receivable + Cash
Current Liabilities = Accounts Payable
Using the given values:
Current Assets = $820 (Inventory) + $1,210 (Accounts Receivable) + $360 (Cash)
= $2,390
Current Liabilities = $890 (Accounts Payable)
The formula to calculate Net Working Capital is derived by subtracting Current Liabilities from Current Assets.
Net Working Capital = Current Assets - Current Liabilities
Net Working Capital = $2,390 - $890
= $1,500
Therefore, the amount of net working capital is $1,500.
Hence, the correct option is (e).
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A student observes several slides with different cell types under a microscope.
Slide
Type of Cells
Slide 1 Liver cell of a mouse
Slide 2 Sperm cell of a human
Slide 3 Skin cells of a human
Slide 4 Egg cells of a mouse
Which pair of slides contains cells that resulted from meiosis?
O Slide 1 and Slide 3
O Slide 2 and Slide 4
O Slide 2 and Slide 3
Slide 1 and Slide 4
Answers
Answer:
The slides containing cells resulting from meiosis are slides 2 and 4.
Explanation:
The cells on slide two are human sperm, while on slide four are mouse eggs. Both sperm and eggs are sex cells or gametes, produced through meiosis.
Meiosis is the mechanism of reductional cell division that serves to obtain gametes, a process called gametogenesis. In meiosis, four haploid daughter cells, the gametes, are obtained from a diploid cell.
The other options (slides) are not correct because :
Mouse liver and human skin cells are somatic cells, produced by mitosis.why does the central part of a red blood cell appear paler than the outer part when viewed under a light microscope
Answers
Answer: The central pale area of each red blood cell is due to the concavity of the disc.
Explanation:
The absence of a nucleus and light effect makes the central part of a red blood cell appear paler
The red blood cells ( RBC )does not have a nuclei like every other cells contained in the body. therefore when viewed under a light microscope the outside of the red blood cell will appear brighter ( pink ) while the center of the red blood cell will appear pale ( whitish ). also the the light intensity from the light microscope contributes to the pale nature of the central part of the red blood cell.
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gene lab space biology terms and names
Answers
Here are some terms and names related to gene lab space biology: Gene expression, Polymerase chain reaction, Genome, Gene therapy and Bioinformatics.
Gene expression: The process by which information in a gene is used to synthesize a functional protein or RNA molecule.
Polymerase chain reaction (PCR): A laboratory technique used to amplify a specific segment of DNA, allowing for the detection and analysis of small amounts of genetic material.
Genome: The complete set of genetic material (DNA) in an organism, including both coding and non-coding regions.
Gene therapy: The use of genetic engineering techniques to treat or prevent genetic diseases by correcting or replacing defective genes.
Bioinformatics: The field of study that combines computer science and biology to analyze and interpret biological data, particularly data related to genetics and genomics.
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--The given question is incomplete, the complete question is
"Explain terms and names related to gene lab space biology"--
7. What is an index fossil? What do index fossils reveal about other material found with
them?
Answers
Answer:
Index fossils are fossils that are widespread but only existed for a short period of time. Index fossils help scientists to find the relative age of a rock layer and match it up with other rock layers. Living fossils are organisms that haven't changed much in millions of years and are still alive today.
body system responsible for sensing the environment and sending messages back and forth between body parts and the brain is called ?
Answers
The body system responsible for sensing the environment and sending messages back and forth between body parts and the brain is called The nervous system.
The nervous system consists of the brain, spinal cord, and a vast network of nerves. This system relays information across the brain and the body. All body processes are controlled by the brain.
The nervous system carries signals between the brain and the rest of the body, including internal organs. Thus, the activity of the nervous system controls our ability to move, breathe, see, think, etc. The basic unit of the nervous system is the nerve cell or neuron. In the nervous system, an organized group of cells specialized to carry out electrochemical stimulation from sensory receptors to reaction sites through a network. All living things are capable of detecting changes in themselves and their environment.
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Which graph below represents the amount of potassium-40 and the amount of argon-40 and calcium-40 over four half-lives?
Answers
Answer: b
Explanation: i got it right
2. The thread-like chromosomes are spread
throughout the nucleus in the form
Answers
Answer:
When the cell is not dividing, the genetic material is loosely dispersed throughout the nucleus in a threadlike form called chromatin.
Explanation:
Chromatin is the thread-like chromosomes spread throughout the nucleus.
What are chromatin and its functions?Eukaryotic cells' nuclei include a combination of macromolecules called chromatin, which is made up of DNA, RNA, and protein. Heterochromatin (condensed) and euchromatin are the two types of chromatin. The main proteins that make up chromatin are termed histones, which act as bases for the DNA to wrap around to form the "bead-like" structures known as nucleosomes.Functions of chromatin:DNA packagingTranscription regulationChromatin and DNA repair
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What force can stop gravity in a black hole?
Answers
Answer:
No force.
Explanation:
If the core is very massive (approximately 2.5 times more massive than the Sun), no known repulsive force inside a star can push back hard enough to prevent gravity from completely collapsing the core into a black hole.
the law of reflection states that light will always reflect
Answers
Answer:
The law of reflection states that, on reflection from a smooth surface, the angle of the reflected ray is equal to the angle of the incident ray. ... The reflected ray is always in the plane defined by the incident ray and the normal to the surface.
Explanation:
which of the following is the correct sequence of events in mitosis? group of answer choices dna replicates, spindle fibers form, dna separates as cell divides, dna lines up in middle spindle fibers form, dna lines up in middle, dna replicates, dna separates as cell divides dna lines up in middle, dna replicates, spindle fibers form, dna separates as cell divides dna replicates, spindle fibers form, dna lines up in middle, dna separates as cell divides
Answers
The correct sequence of events in mitosis is that spindle fibers form, DNA lines up in the middle, DNA replicates, and DNA separates as the cell divides.
Thus, the correct answer is spindle fibers form, DNA lines up in middle, DNA replicates, and DNA separates as the cell divides (B).
What is mitosis?Mitosis is the process of cell division that results in the creation of two identical daughter cells with the same quantity of chromosomes as the parent cell. The process of cell division is necessary for the development and survival of all living things. Mitosis occurs in somatic cells (body cells) and is critical in replacing damaged or dead cells. The sequence of events in mitosis is critical to ensure that the daughter cells are identical and have the same genetic content as the parent cell.
Your options aren't well arranged, but most probably your options were
A. DNA replicates, spindle fibers form, DNA separates as cell divides, DNA lines up in the middle
B. spindle fibers form, DNA lines up in middle, DNA replicates, DNA separates as cell divides
C. DNA lines up in middle, DNA replicates, spindle fibers form, DNA separates as cell divides
C. DNA replicates, spindle fibers form, DNA lines up in middle, DNA separates as cell divides
Thus, the correct option is B.
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after digesting dna with a restriction enzyme, would you expect more or fewer dna fragments than undigested dna. would these fragments be smaller or larger than the undigested dna? a. fewer and larger, respectively b. more and larger, respectively c. more and smaller, respectively d. fewer and smaller, respectively
Answers
After digesting DNA with a restriction enzyme, you would expect more DNA fragments than undigested DNA. These fragments would be smaller than the undigested DNA. The correct option is (C) more and smaller, respectively.
A restriction enzyme cuts DNA by recognizing a specific DNA sequence, then breaking both strands of the DNA at specific points within that sequence. Restriction enzymes are commonly used to cut DNA into small pieces that can be more easily studied in the lab.
The use of restriction enzymes is referred to as a molecular scissors. Restriction enzymes are enzymes that cut DNA molecules into smaller pieces. There are different types of restriction enzymes that cut DNA at different sites; they act as molecular scissors. These enzymes are named after the bacterium from which they are isolated.
They recognize and bind to specific sequences of DNA known as restriction sites, and they cut the DNA at or near these sites. When DNA is digested with a restriction enzyme, the resulting DNA fragments are called restriction fragments.
Therefore, correct option is C.
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which of the following statements are true about dna replication in eukaryotes? select all that apply. a. replication of the entire genome takes about ten minutes. b. a replication fork occurs at each growing point of the replicating chromosome(s) c. eukaryotes have many different chromosomes, with replication occurring in each at the same time d. replication occurs at the rate of about 500-5000 base pairs per minute e. multiple sites of replication are present on each chromosome
Answers
True statements
b. a replication fork occurs at each growth point of the replicating chromosome;
During DNA replication, a double-stranded DNA helix unwinds and splits into two single strands, creating a replication fork. A replication fork is the point at which two DNA strands are separated and a new strand is synthesized.
c. Eukaryotes have many different chromosomes, and each replicates simultaneously.
Eukaryotes have multiple chromosomes and replication occurs in all of them simultaneously.
d. replication occurs at a rate of approximately 500-5000 base pairs per minute.
The rate of DNA replication in eukaryotes is typically 500-5000 base pairs per minute.
e. each chromosome has multiple sites of replication.
DNA replication occurs at multiple sites on each chromosome called origins of replication. These origins are where the replication process begins and are distributed along the chromosome to allow efficient whole-genome replication.
False statements
a. Whole genome replication takes about 10 minutes.
Replication of an entire eukaryotic genome can take hours to days, depending on the size of the genome and the particular organism.
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Compare and contrast natural selection and artificial selection. PLEASEEE THANKYOU!!!
Answers
Answer:
the favorable traits to be passed on to the next generation are chosen by the breeder.
Explanation:
i had this question before
Look up the MSDS (Material Safety Data Sheet) for naphthalene. This can be done easily by Googling "naphthalene MSDS" since all manufacturers of naphthalene have to make this safety information available to purchasers. Alternatively, printed MSDS sheets are available in the chemistry department's virtual library/computer lab. What are the safety hazards of naphthalene? Where should your test tube (and its contents) go after you have completed the experiment?
Answers
Naphthalene poses hazards of respiratory irritation, skin and eye irritation, and toxicity if ingested. After the experiment, dispose of the test tube and its contents as hazardous waste according to local regulations.
Naphthalene is a white solid aromatic hydrocarbon commonly used as a moth repellent. Its Material Safety Data Sheet (MSDS) typically highlights the following safety hazards:
1. Inhalation: Naphthalene can be harmful if inhaled, causing respiratory irritation, dizziness, nausea, and headache.
2. Skin Contact: Direct contact may lead to skin irritation, redness, and potential allergic reactions.
3. Eye Contact: Naphthalene can cause eye irritation, redness, and discomfort.
4. Ingestion: Swallowing naphthalene can be toxic, leading to abdominal pain, nausea, vomiting, and potential damage to internal organs.
After completing an experiment involving naphthalene, it is important to dispose of the test tube and its contents properly. Naphthalene should be collected and disposed of in accordance with local regulations for hazardous waste. It should be placed in a designated waste container or taken to an appropriate waste disposal facility for safe handling and disposal. Proper precautions should be taken to prevent further exposure or environmental contamination. Always consult the manufacturer's instructions and local regulations for specific disposal guidelines.
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Which is the result of conjugation?
O nucleoid break down
O endospore creation
O rapid cell reproduction
O genetic diversity
Answers
Why was Thomas Morgan's work with fruit flies important
Answers
The ATP molecule can be considered a form of chemical energy because
It stores the energy from the glucose in the bonds between the phosphate groups
It has a five-carbon sugar like RNA
It takes in light energy from the sun
It is a form of fat
Answers
Answer: The correct answer is A) It stores the energy from the glucose in the bonds between the phosphate groups.
Hope this helped!!! :)
Answer:
The correct answer is It stores the energy from the glucose in the bonds between the phosphate groups. :)
Explanation:
What two-word term has been used to describe the annual shopping and sports mayhem in Philadelphia and the time when U.S. retailers typically show a profit?
Answers
The two-word term used to describe the annual shopping and sports is Black Friday.
From the United States (U.S.) financial history, the two-term word black Friday was first used in 1869.
The first annual black Friday occured in Philadelphia in which alot of retailers attracted their key customers and made profits through the discount they placed on their products.
Black Friday was used to describe the financial crisis after the United States's gold market crashed.
Literally, black should depict something negative or loss but on the contrary, the business world uses black to describe profit.
Therefore, the two-word term used to describe the annual shopping and sports is Black Friday.
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STRUCTURE OF DNA
in complementary base paring ____ bonds with____and____bonds with____
please put them in correctly
adenine (A), cytosine (C), guanine (G), and thymine (T).
Answers
Match each example with what type of adaptation it is.
Answers
Answer; 1 is chemical, 2 is behavioral, and 3 is structural
Skeleton in mammals
Answers
your Question is unclear.
about how many years ago was our solar system formed
A)About 5 million years ago
B)About 14 million years ago
C)About 5 billion years ago
DAbout 14 billion years ago
Answers
Answer:
5 billion .........m.......m
Our solar system was formed 4.5 billion years ago.
Why does social science intersect with marine science?
A. Many poems and novels are written about the ocean.
B. Human behavior causes a lot of issues with the ocean.
C. Social science is another important branch of the sciences.
D. These are very different disciplines that have little connection.
Answers
Answer:
it's either b or d I think
Social science intersects with marine science because human behavior causes a lot of issues with the ocean.The correct option is B.
The ocean is a body of salt water that covers approximately 70.8% of the Earth and contains 97% of Earth's water, making Earth an ocean world. The term ocean also refers to any of the large bodies of water into which the world ocean is conventionally divided.Distinct names are used to identify five different areas of the ocean: Pacific , Atlantic, Indian, Southern, and Arctic.
Seawater covers approximately 361,000,000 km² of the planet. The ocean is the primary component of the Earth's hydrosphere, and thus essential to life on Earth. The ocean influences climate and weather patterns, the carbon cycle, and the water cycle by acting as a huge heat reservoir.Pollution of water by human activities makes the marine science intersect with social science.
Thus, option B is correct.
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Can anyone help me please
Answers
Answer:
hehe thanks
Explanation:
conclusion in microscope