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fgiga [73]
3 years ago
14

What are the most difficult concepts for students to understand?

Biology
1 answer:
attashe74 [19]3 years ago
6 0
Duh. It's algebra. Didn't you know that?! 
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1. Which offspring are the recombinant offspring in this cross?
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The lymphatic system includes areas of high concentrations of APCs, T and B cells.

<h3>What is the lymphatic system?</h3>

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Which is most likely an example of a vestigial structure?
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Just letting you know that the meaning of a vestigial structure

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