Answer:
B
(The result of DNA replication is two DNA molecules consisting of one new and one old chain of nucleotides. This is why DNA replication is described as semi-conservative, half of the chain is part of the original DNA molecule, half is brand new.)
Answer: homo sapiens is the only species with a large enough oral cavity and a low enough larynx to allow for speech production.
<span>One line of evidence that speech only possible for modern homo sapiens is the anatomy of their throat. Speech depends on certain anatomical arrangements and the Homo sapiens is the only species with a large enough oral cavity and a low enough larynx that would allow speech.</span>
Answer:
True
Guard cells close openings in the leaves slowing down water loss.
Skin pigments actually protect us from ultraviolet rays!
System purifies the body by the elimination of waste products. This system enables breathing, supplies the body with oxygen, and eliminates carbon dioxide as a waste product. This system serves as a productive covering for the body and helps in temperature regulation.
