An invertebrate biologist is conducting research with crabs. Her interest is ecdysis. This implies that she studies
A. how ocelli evolved from mere photoreceptors to imaging lens.
B. how the HOX gene controls the fusion of the head and thorax into the cephalothorax.
C. tagmatization processes in crustaceans.
D. the molting process.
E. how ommatidia function individually in a compound eye.
Answer: D
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A. O2 B. CO2 C. water D. potassium E. N2
The ____ began in 2007 and aims to classify the microorganisms the human body supports and how they impact overall
health.
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a. the annual rings, new xylem, vascular cambium, phloem, and bark. b. the secondary xylem, cork cambium, phloem, and periderm. c. the vascular cambium, oldest xylem, and newest xylem. d. the secondary xylem, secondary phloem, and vascular cambium. e. the summer wood, bark, and phloem.