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maw [93]
3 years ago
15

The forelimbs of humans, cats, and bats have a number of detailed similarities in their construction. what best explains these s

imilarities? the forelimbs of humans, cats, and bats have a number of detailed similarities in their construction. what best explains these similarities?
Biology
1 answer:
bulgar [2K]3 years ago
6 0
Evolution :).

Descent with modification helps to explain anatomical similarities among certain species. The bones of the forelimbs of humans, cats, and bats (you can add in penguins, alligators, and more) are used in different ways but have similar structures.

The best explanation is that these animals have a common ancestor. With new generations, new species emerged by natural selection from different populations, and with this, the bones become better for different tasks.

The forelimbs and other such structures with anatomical similarities due to a common ancestor are called homologous structures.


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HACTEHA [7]

Answer:

Explanation:

Imperfect science can be described as the scientific study of a research/field that is not complete or is characterized with a number of faults. While there are many scientific research fields or focus that fall under this category (because scientists are constantly seeking to improve existing knowledge of various scientific field), let's limit our scope to DNA evidence analysis.

DNA evidence testing for instance is very expensive which makes it difficult (in most cases) for victims to request for it in cases of crime (except requested by the government). For instance, if a killing that involves a struggle was done in a small neighborhood of about a 100 people with no visual confirmation of the killer but just some blood samples of the killer, DNA evidence testing might still not be used in a case like this despite the  crime happening in a relatively small community.

Also, since DNA evidence testing relies on the gene and there is a lot of research going on at the moment on genes (including gene mapping and locus system) which can assist to lower the number of suspects by predicting the origins of suspects. It should be noted that reducing the number of suspects reduces the amount that will be spent on DNA analysis of the suspects (since there are fewer suspects).

4 0
3 years ago
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7nadin3 [17]
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7 0
3 years ago
Which describes the moth population after the industrial Revolution?
hjlf
I am not 100% sure but I believe that because of increased manufacturing, the air got very polluted and this made many trees darker, like birch. So moths are usually lighter in color so many couldn’t really hide among trees and they were eaten. After some time, many moths mutated and also became darker to blend in when they were on trees to prevent being eaten by predators. In conclusion, the population decreased.
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4 0
3 years ago
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Lesechka [4]
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8 0
3 years ago
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quester [9]

Answer: Option E. DNA replication

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5 0
4 years ago
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