Construction of flagella and/or cilia is directed by the
A. basal body.
B. axoneme.
C. tubulin.
D. centriole.
Answer: A
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Inhibitors of protein synthesis typically key on
A. peptidoglycan precursors. B. penicillin-binding proteins. C. ribosomes. D. porin proteins.
Which of the following is INCORRECTLY paired?
a. pancreas ? insulin b. thyroid gland ? thyroxine c. hypothalamus ? melatonin d. adrenal cortex ? glucocorticoids e. posterior pituitary ? oxytocin
Speciation is more likely to occur if the isolated population is large
___________ Indicate whether the statement is true or false.
In a grassland of Kansas, 1,000 grams of grass are produced per square meter per year by all the different grass species. A theoretical upper limit to the biomass of secondary consumers that can be supported in this ecosystem is
A) 1,000 grams. B) 100 grams. C) 10 grams. D) 0.1 gram. E) 1 gram.