When a tourist buys a sand dollar at a beach shop, what are they buying?
A) A calcium carbonate shell secreted from the mantle
B) Anendoskeleton of calcium carbonate ossicles
C) A molted exoskeleton made of chitin
D) An endoskeleton made of bone
Correct Answer:
Verified
Q7: Frog eggs most closely resemble
A)chicken eggs.
B)fish eggs.
C)platypus
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