morgans53005

30.01.2020 • 

Biology

Which of the following provides the best example of how comparative embryology supports the theory of evolution?
a. humans do not lay eggs as birds do, but birds produce yolk sacs instead of embryos, suggesting birds evolved later than humans.
b. humans have a tailbone that is not visible during embryonic development, which suggests that humans evolved to not depend on their tailbone serving a useful purpose.
c. humans do not have gills as fish do, but human embryos have gill slits, suggesting humans and fish share a common evolutionary ancestor.
d. humans have embryonic cells that develop in a predictable way, which suggests that other organisms also evolved to develop in the same manner

Ответ:

aprilnicky4110

17.01.2022

Biology

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"Humans do not have gills as fish do, but human embryos have gill slits, suggesting humans and fish share a common evolutionary ancestor" is the one among the following that provides the best example of how comparative embryology supports the theory of evolution. The correct option among all the options that are given in the question is option "C". 

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Ответ:

nathan123498

14.02.2020

Biology

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There are three energy level in the energy pyramid. The producers have the 100% energy and the primary consumers feed on the producers and obtain 10% energy the producers have and secondary consumers feed on the primary consumers.

The energy left at this level is 10% of the energy that primary consumers have.

Hence, Producers will have 475,650 kilocalories

Primary consumers will have 475,65 kilocalories

Secondary consumers will have 4756.5 kilocalories

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