Animals establish and defend territories only when ____
a. the effort does not endanger the life of the individual
b. males compete for females by fighting
c. females choose among displaying males
d. some critical resource is in short supply
e. territorial defense is not energetically costly
D
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Examine Figure 48.1 in your text illustrating human population growth. What pattern of growth are we currently exhibiting?
A. exponential growth B. logistic growth C. intrinsic growth D. geometric growth E. None of the above.
In terms of number of species, the most successful terrestrial vertebrates that invaded the air are
A. insects. B. pterosaurs. C. birds. D. bats. E. flying monkeys.
Shitake mushrooms are decomposers that break down biological molecules from dead organisms. These organisms
belong to the ____ kingdom.
a. Protist b. Animalia c. Bacteria d. Fungi e. Plantae
In the Krebs cycle, citrate forms when combines with the two carbons of acetyl CoA.
A. oxygen B. a cytochrome C. pyruvate D. NADH E. oxaloacetate