You are given the task of confirming the categorization of a newly discovered animal that has been tagged as a species of annelid. What evidence would convince you that it is indeed an annelid and not a roundworm or flatworm?
A) an incomplete digestive tract
B) a highly branched gastrovascular cavity
C) parasitic feeding habits
D) body segmentation
D
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Which is NOT a stimulus that the simplest sensory receptors, free nerve endings, will respond to?
A. bending of the sensory neuron membrane B. changes in temperature C. changes in the oxygen content of the extracellular fluid D. release of odorants from freshly baked bread E. stretching of the sensory neuron membrane
When a farmer grows cotton containing the gene for Bt toxin, insects that are resistant (rr) survive and reproduce. This is an example of
A. genetic drift. B. dominance. C. natural selection. D. recombination. E. independent assortment.
When blood glucose concentration is high, pancreatic beta cells secrete insulin, and consequently blood glucose
concentration is increased. Indicate whether the statement is true or false.
What number process does information gathering correspond with?
What will be an ideal response?