The symbiotic association in which one partner benefits and the other partner is neither harmed not
helped is called mutualism.
__________________ Indicate whether the statement is true or false.
F, commensalism
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Research comparing chromosomal structure between the genomes of humans and other primates reveals that humans
are most closely related to ____.
a. monkeys b. orangutans c. chimpanzees d. gorillas e. lemurs
Which of the following characteristics is not true of excitatory postsynaptic potentials and inhibitory
postsynaptic potentials? a. They may both be summed spatially or temporally. b. Both EPSPs and IPSPs are graded potentials. c. IPSPs cancel the effects of some of the EPSPs. d. Each EPSP or IPSP affects the membrane potential of the neuron. e. They both represent an all-or-none response
Which of the following populations would have the highest population growth rate?
A. a population with a high natality and a high mortality B. a population with very few old animals in it and a large number of young animals C. a population in which 65% of the animals are males D. a population with low natality and high mortality
Cell wall is seen in both plants and animal cells
a. true b. false