Information gathering from the environment by a vertebrate is aided by which of the following?
A. cephalization
B. paired eyes, ears, and olfactory structures
C. bilateral symmetry with a vast increase in the number of neurons
D. All of the choices are information gathering aids.
Answer: D
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What process is shown in this diagram?
a. oxidation
b. reduction
c. phosphorylation
d. dephosphorylation
The concept of the niche was initially developed by
A) Hutchinson. B) Brodie. C) Wetzel. D) Grinnell.
Bicarbonate is an important buffer in blood and its concentration is regulated by the
A) heart. B) lungs. C) liver. D) kidneys. E) pancreas.
Each of the following statements concerning bacterial spores is correct EXCEPT:
A. They are formed by Gram-positive rods B. Their survival ability is based on their enhanced metabolic activity C. They can be killed by being heated to 121 C for 15 min D. They contain much less water than bacterial cells