Answer:
the bat and the racoon share a common ancestor.
Explanation:
what is described in this question are homologous structures, which indicate common ancestry. hope this helps!
<span>B. millions of years hope this helps</span>
Calcium
Vitamin D
Vitamin K
Phosphorus
vitamin C
Answer:
A.
Explanation:
Choice B is incorrect. That definition can be applied to both DNA <em>and </em>RNA, as they are both made of a nucleic acid, phosphate, sugar ring, and nucleotide base.
Choice C is incorrect. That would be the message strand made by RNA when they are transcribed.
Choice D is incorrect because it's absurd.
<span>Both photoautotrophs and chemoautotrophs synthesize organic compounds from (inorganic) carbon dioxide, a process known as carbon fixation. Photoautotrophs get the energy to perform these reactions from light. Chemoautotrophs get it from electron donors such as hydrogen sulfide and ammonia. Cyanobacteria, by contrast, convert nitrogen from the atmosphere into ammonia, a process known as nitrogen fixation.</span>
