During the Cambrian explosion approximately 535 to 525 million years ago,
A) all modern species of animals suddenly appeared.
B) animals rapidly diversified in the oceans.
C) a massive volcanic eruption nearly wiped out life on Earth.
D) great forests produced peat layers that were later transformed into coal.
Correct Answer:
Verified
Q1: Which of the following statements is true?
A)
Q2: Most of the animals alive today are
A)
Q4: How do sponges transport nutrients within their
Q5: Which of the following statements regarding cnidarians
Q6: Which of the following animals displays radial
Q7: Which of the following are not included
Q8: In protostomes
A) the opening formed during gastrulation
Q9: A typical sponge is best described as
Q10: Which of the following are not included
Q11: Which of the following statements about deuterostomes
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