Modern humans possess the same craving for ________ and ________ as our ancestors, despite the obesity these cravings can cause today
A) fat … sugar
B) sugar … salt
C) protein … vitamin C
D) iron; iodine
A
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Treponema pallidum
A. is the organism that causes syphilis. B. is a spirochete. C. can be more easily viewed with dark-field illumination. D. has become less virulent over time. E. All of the above are correct.
Which bird is a social parasite and lays its eggs
in the nests of other birds? a. catbird b. cowbird c. magpie d. Kirtland warbler e. blue jay
Scientists who study human evolution are called:a
anthropologists. b. human ecologists. c. anthroecologists. d. paleoanthropologists. e. paleontologists
Multi-partner associations consisting of a particular fungi and photosynthetic green algae and /or cyanobacteria are called
a. endophytes b. symbiophytes c. crustophytes d. fruticophytes e. lichens