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labwork [276]
3 years ago
14

What is the theory of natural selection, and why does it occur in an organism? Give an example.

Biology
1 answer:
BlackZzzverrR [31]3 years ago
5 0

Answer:

It occurs in organisms because an organism with a beneficial trait/mutation have a higher chnace of surviving compared to organisms that do not. So the organsims that do survive pass on their genes to the next generation, and the bext generation will pass on those genes to the generation after and so on. But all the organisms that do not possess a beneficial trait/mutations will not survive, therefore they cannot reproduce and pass on those genes to their offspring. This means that most of the population will posses that trait/mutation.

Example: Spotted moths camouflage with bark so they are seen by predators and eaten. Black moths are easily seen by predators and are eaten. Spotted moths then pass on their genes to the next generation of moths.

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What is the purpose of meiosis? What type of cell is created (list all the scientific names)?
Akimi4 [234]

Meiosis is when two parent cells give birth to two sister cells.

The cell that is created is a sister cell.

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6 0
3 years ago
Similarities in the early development of chickens and opossums suggest that these organisms share a what?
Andrews [41]
<span>Similarities in the early development of chickens and opossums suggest that these organisms share a common ancestor. It might be difficult to answer such questions without any choices, but knowledge is important. I hope that this answer has actually come to your great help.</span>
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3 years ago
Anna is working on the study guide for her biology semester exam. The statement is made that ATP is required for ALL cellular fu
anyanavicka [17]

Answer:

are there options

Explanation:

8 0
3 years ago
10 POINS IM SUPOSED TO TURN THIS IN TODAY!!!<br> THIS IS THE ONLY ONE I NEED HELP ON PLZ HELP ME!!!
ehidna [41]

Answer:

glucose <disaccharides <starch<protein

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6 0
3 years ago
How is prophase, metaphase and anaphase of mitosis, meiosis I and meiosis II different or the same?
bulgar [2K]

Answer:

The two main processes of cell division, meiosis and mitosis, have in common their main steps. In both cases the metaphase ( pairing of homologous chromosomes), anaphase (migration of chromosomes to the ends) and telophase (beginning of DNA decondensation and cell division) are very similar.

The greatest difference occurs in prophase I of the meiosis, which involves the process of recombination (cross over), resulting in variability in the gametes.

Another difference is that meiosis is a reductional process, where the final result of meiosis will be gamens with half of the genetic information, and in mitosis both cells will be equal.

8 0
3 years ago
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