The structures labeled 2 in Figure 43-2 are the:
a. ampullae.
b. cochleae.
c. utricles.
d. semicircular canals.
e. bony labyrinth
A
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In Drosophila melanogaster there is a sex-linked gene for eye color that is found only on the X
chromosome. The allele for red eye color (Xw+) is dominant over the allele for white eye color (Xw). You examine a vial of 100 flies that are all offspring from a single genetic cross. You find both redeyed females and white-eyed females as well as both red-eyed males and white-eyed males. The genotypes of the parents were
a. Xw+Xw+; XwY. b. Xw+Xw; XwY. c. XwXw; Xw+Y. d. Xw+Xw; Xw+Y. e. XwXw; XwY.
Which of the following processes is the transfer of heat from a body to a fluid that passes over its
surface?
a. conduction b. radiation c. evaporation d. convection e. radiative cooling
Nerve impulses coming into the spinal cord enter via
a. intervertebral disks. b. neuroglia. c. the dorsal roots. d. Broca’s area. e. ventral roots.
A painful creeping ulcerating lesion on or near the lips is the result of infection with (corona/herpes/mumps) virus
What will be an ideal response?