Which area of the brain helps to translate thoughts into speech by controlling tongue, throat, and lip muscles?
a. amygdala
b. Broca's area
c. hypothalamus
d. limbic system
e. pineal body
b
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Mannitol salt agar is considered a differential medium because the salt inhibits the growth of many bacteria but not staphylococci.
Answer the following statement(s) true (T) or false (F)
Which of the following is true of both neurotransmitters and hormones?
A. They both travel through the bloodstream to target cells. B. They both influence the activity of multiple organs simultaneously. C. They are both produced in glands. D. They both interact with receptors inside or on the surface of target cells. E. They are both involved in paracrine signaling.
Figure 17.3
If the population of flowers illustrated in the accompanying Punnett square is in genetic equilibrium, the frequency of the homozygous dominant genotype in the new generation will be ____.
A. p2 B. 2pq C. p2 + q2 D. q2 E. p2 + 2pq
A homeotic gene
A) determines which end of the egg will become the head and which end will become the tail. B) serves as a master control gene that functions during embryonic development by controlling the developmental fate of groups of cells. C) represses gene transcription and promotes mRNA translation. D) is found only in adult somatic cells.