The scientific name of a polar bear is Ursus maritimus. The first part, Ursus, is the ____ name
a. family
b. genus
c. species
d. order
e. phylum
ANSWER: b
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Regulates movement of mineral ions into root xylem.
Choose the letter of the best match: A. abscisic acid B. trichomes C. aquaporin D. endodermis E. stoma
Small cavities that contain osteocytes
What will be an ideal response?
How does the embryo of an egg-laying animal obtain nutrients for growth?
A. from the calcium carbonate found in the egg shell B. from the yolk of the egg C. from the mother's body D. from the amniotic sac E. through tiny pores in the shell of the egg
Which sequence of events is required for the brain to interpret sound?I.Vibration of the basilar membrane relative to the tectorial membrane causes cilia on hair cells to bend and triggers depolarization.II.Hair cells stimulate the production of action potentials in sensory neurons that project to the brain.III.Ganglion cell axons transmit action potentials to the occipital lobe.
A. II then I B. III then I then II C. I then II D. III then I E. I then II then III