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rusak2 [61]
4 years ago
6

Which of the following statements is true of evolution? A. Evolution does not always progress in one set direction. B. Earth's p

resent-day species evolved from older, identical species. C. Limited resources discourage the evolution of species. D. all of these
Biology
1 answer:
Vesnalui [34]4 years ago
6 0

Answer: B. Earth's present-day species evolved from older, identical species.

The evolution is the change or modification in the characteristics of a species over genration due to the process of adaptation and natural selection. The statement "Earth's present day species evolved from older, identical species is true about evolution". As, proposed by Darwin evolution is "descent with modification", which means that in a process of evolution species change and give rise to new species over generation. He proposed that newly evolved life forms can be traced back to their common ancestor.

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8 0
3 years ago
What would happen if the ribosomes did not do their job?
telo118 [61]

Ribosomes are organelles that create proteins. Cells use proteins to perform important functions such as repairing cellular damage and directing chemical processes. ... Without these ribosomes, cells would not be able to produce protein and would not be able to function properly.

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How a change in glycoproteins affects a cell’s ability to maintain homeostasis
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Explanation:

Most of the cell surface receptors and glycoproteins. These glycoproteins have active sites that recognize specific signals, like hormones, that initiate secondary signaling pathways inside of the cell, in response to the external signal. This is how cells respond to environmental stimuli.

If a change in glycoproteins makes them unable to bind signaling molecules (like hormones) or makes them permanently bind these molecules, there will definitely be a defect in how the cell responds to external stimuli.  The cell will be, for example, be unable to respond to insulin in case of elevated blood sugar levels as is the case with diabetics.

Learn More:

For more on glycoproteins check out;

brainly.com/question/11473349

brainly.com/question/13602455

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8 0
3 years ago
The codes for making proteins are carried from the nucleus to the ribosomes in the cytoplasm by _____________. a. RNA b. mRNA c.
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B. mRNA 

hope this helps
thanks
8 0
3 years ago
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