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AleksAgata [21]
3 years ago
8

PLEASE HELP ASAP :)

Biology
1 answer:
Orlov [11]3 years ago
7 0
These are the answers to the following questions:

1. In what type of rocks would geologists most likely find evidence of past life forms?
-igneous rocks

2. The physical, chemical and biological laws that opeate today have also operated in geologic past. This statement relates to the principle of
-cross-cutting relationships

3. In general, the law of superstition states that in an underformed sequence of sedimentary rocks, each layer is
-older than the one below it

4. If a layers of sandstone is in contact with a mass of granite that contains small pieces of the sandstone, which rock is older?
-It is not possible to determine which rock is older from this information
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4 billion years ago the temperature was much higher due to repeated volcanoes and hot gases present in the atmosphere. There weren't any live forms on earth. ... The atmosphere had a different concentration of gases on the earth. There were no life sustaining gases.
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Researchers studied mice embryos to determine whether the cells of the ear bones originated from the same embryonic cells as the
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The researchers will use mice instead of opossums or humans to determine whether the cells of the ear bones originated from the same embryonic cells as the cells that form the jaw in other vertebrates because in this type of experiment, organisms that are ideal are the ones that have a short life span, easy to be researched on and easy to mantain.

It will be very tedious and demanding to use opossums and humans in this type of practical experiment because,it is against the culture and norms guilding human living and existence to use humans as model organisms,opossums as well are very bad model organisms because unlike the mice,opossums are long lived and it will be very difficult to raise and maintain an opossum in a laboratory.

Humans and mice are both mammals just that human is a higher mammal but they share similar features in terms of pattern of development,though there is a clear difference during their early development,so because of the common ancestry shared by the mice and humans,the result of the experiment on the mice with share a close similarity with the pattern that is expected in humans.

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Which words in the story help the reader understand the meaning of the word flourish in paragraph 1
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N/A

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