The taxonomic category that includes all bipedal primates is called _____________________. Fill in the blank(s) with the appropriate word(s)
hominins
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Mr. Johnson was becoming slightly deaf. To test his hearing, his doctor held a vibrating tuning fork tightly against Mr. Johnson's jaw. This sent vibrations through the bones of the skull, setting the fluid in the cochlea in motion. Mr. Johnson could hear the tuning fork this way, but not when it was held away from the skull a few inches from his ear. His hearing problem is most likely attributed to the
A. auditory cortex of Mr. Johnson's brain. B. auditory nerve leading to Mr. Johnson's brain. C. hair cells in the cochlea. D. tympanum or the bones of the middle ear. E. fluid of the cochlea.
An unprotected area of naturally occurring plant and animal assemblages that is surrounded by unsuitable territory due
to development or habitat destruction is referred to by biologists as: a. an island. b. ex situ conservation. c. a reserve. d. a park. e. a refuge.
Rocky Mountain juniper (Juniperus scopulorum) and one-seeded juniper (J. monosperma) have overlapping ranges
Pollen grains (which contain sperm cells) from one species are unable to germinate and make pollen tubes on female ovules (which contain egg cells) of the other species. These two juniper species are kept separate by _____. A) habitat isolation B) temporal isolation C) gametic isolation D) behavioral isolation
Is the resting membrane potential of a neuron closer to the equilibrium potential for K+ or Na+?
A. Na+ B. K+ C. It is an average of the two.