The __________ is considered to be the earliest life form.
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Q31: One of the biggest challenges facing terrestrial
Q32: Which of the following statements with respect
Q33: The cell wall of fungi is composed
Q34: Amphibians differ from other tetrapods in that
Q35: Cartilaginous fish evolved from
A)agnathans.
B)placoderms.
C)ostracoderms.
D)lampreys.
Q37: Which of the following animals are amniotes?
A)amphibians,mammals,birds,and
Q38: Would you expect gene duplication,such as seen
Q39: Which of the following organisms are able
Q40: The body plan of sponges is _,while
Q41: We often hear the terms protists,protozoans,and metazoans;briefly
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