Explanation:
Meiosis I has one diploid parent cell and ends with two haploid daughter cells, splitting the number of chromosomes in each cell. Meiosis II starts with two haploid parent cells and ends with four haploid daughter cells, maintaining the number of chromosomes in each cell.
B) The species has 16 sets of chromosomes per cell.
C) Each cell has eight homologous pairs.
D) During the S phase of the cell cycle there will be 32 separate chromosomes.
E) A gamete from this species has four chromosomes.
For a species with a chromosome number of 2n=16, each cell has eight pairs of homologous chromosomes. There are not 32 chromosomes, 16 sets, or four chromosomes in a gamete.
In biology, the chromosome number 2n=16 indicates that the organism is diploid and has 16 total chromosomes, which are organized into 8 homologous pairs. So, the correct answer is option C) Each cell has eight homologous pairs. The number 16 (2n) represents the total number of chromosomes, not how many sets there are, making option B incorrect. One should not interpret this to mean there are 32 chromosomes in total, so option A is also incorrect. During S phase of the cell cycle DNA replication happens, but this doesn't change the number of chromosomes, just the number of DNA molecules, therefore, option D isn't right. Lastly, a gamete (sex cell) from this species would have n=8, or half the number of chromosomes, contradicting option E.
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a.) Algae vs Protozoans
The main difference between Protozoans and Algae is that Algae are autotrophs, meaning they make their own food. Protozoans, on the other hand, are heterotrophs, they ingest other organisms or organic molecules.
b.) Algae vs plants
One of the more striking differences between algae and plants is their complexity. Algae can either be unicellular or multicellular, while plants are multi-cellular only. Plants have vascular systems, it allows the uptake and transport of nutrients and water. Algae needs to get all of its nutrients from water. Reproduction is also another difference between them. Plants have a more complex mode of reproduction. Algae reproduces through spores and replication.
Answer:
a.) Algae vs Protozoans
The main difference between the algae and protozoa is that algae can make their own food by the help of photosynthesis and and protozoa ear the food made by autotrophs.
b.) Algae vs plants
The main difference between the algae and plants is that algae has a simple body structure sometimes they are unicellular and plants are multicellular complex kind of body organization.
The right answer is notochord.
La chorde (ou notochorde), issue du mésoderme axial, est une structure embryologique cartilagineuse, spécifique de l'embranchement des Chordés (Chordata), auquel appartiennent notamment les Vertébrés (Vertebrata).
Elle constitue une sorte de baguette rigide mais flexible, formée de grandes cellules et située dorsalement entre le tube neural et le tube digestif. Elle est également un important centre de signalisation, produisant notamment la protéine Shh qui permet la formation du sclérotome à partir des somites ou « mésoblaste dorsal » (et donc les vertèbres) et la mise en place de l'axe dorso-ventral du tube neural.
La chorde est entourée de somites qui sont pleins et métamérisés.
Answer:
The dolphins population may diminish a little.
Explanation:
Crabs are one of the many things dolphins eat, and, as the prompt suggest, they cannot live in temperature greater than 60 degrees F. If climate change makes the temperature 62 degrees F, the crab population will all die. However, note that dolphins do not only eat crabs, as they have other food sources. However, crabs are a major population, so we can see a disruption in the food web, with there being less dolphins than usual.
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b. question, observe, hypothesize, experiment, analyze, formulate a conclusion
c. question, hypothesize, observe, experiment, analyze, formulate a conclusion
d. observe, question, hypothesize, experiment, analyze, formulate a conclusion
Option D is correct.
The correct order of steps of scientific enquiry are observe, question, hypothesize, experiment, analyze, formulate a conclusion.
Explanation.
Initially we observe something. Like, why a change has occurred. For example, we observed that our room is still dark even after we switched on bulb in our house. It didn't light up as it usually do.
After observing this , we tend to question why it might have happened.
Then we hypothesize i.e. give many reasons for the bulb not working like may be there is no electricity supply, may be switch is impaired or may be bulb has ceased to work.
In order to establish that we are giving the right reason for this, we will prove it through experimenting using a control set and experimental set. Like, if we think that there is a problem in the bulb then we will replace it with the new bulb.
After that we will analyze the results of the experiment. If the room lights up after replacing the bulb then that means there was a problem in the bulb. It also means that there is proper current supply and switch is also working well. But, in case the room still doesn't light up then it simply means that there is a problem with electricity supply or switch. So, we can check for them as well.
In this case if the room lights up then we reach to this conclusion that there was a problem with the bulb otherwise we will that conclude some other factors are responsible for darkness in the room.