Blood pressure drives the first step in urine formation, called _____________________.
A. tubular reabsorption
B. antidiaresis
C. tubular secretion
D. glomerular filtration
E. aldosterone processing
Answer: D
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Most land-dwelling invertebrates and all of the amphibians _____
A) are ectothermic organisms with variable body temperatures B) alter their metabolic rates to maintain a constant body temperature of 37 °C C) have a net loss of heat across a moist body surface, even in direct sun D) are endotherms but become thermoconformers when they are in water E) become more active when environmental temperatures drop below 15 °C
When (+) and (-) strains of the Zygomycete Rhizopus stolonifer meet, ________
a. they each release haploid spores which fuse to form a diploid mycelium b. they cannot mate because they are incompatible strains c. their hyphae fuse to form a diploid zygospore d. they compete for available resources
How is movement in vertebrates analogous to the movement of a lever?
What will be an ideal response?
What idea did Malthus champion that Darwin
incorporated into his theory of evolution?
a. Populations have the capacity to produce more offspring than the environment can support. b. Populations will always produce more individuals than the environment can support. c. Populations will only produce the number of individuals that the environment can support. d. Populations will never produce offspring in stressful environments. e. None of these are ideas of Malthus that Darwin incorporated into his theory of evolution