Why is olfaction an ancient sense?
a. it was the first sense to develop in humans
b. it was used solely to find potential mates
c. it was used to detect predators
d. it was used to find shelter
e. it was the first sense to develop in amphibians
C
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What will be an ideal response?
Prevention and control of rabies includes
A. post-exposure vaccination of humans. B. pre-exposure vaccination of dogs and cats. C. pre-exposure vaccination of humans at high risk. D. All of the choices are correct.
In plants, a zygote develops into a ________
a. gametophyte b. sporophyte c. spore d. gamete
A systemic release of histamine and other inflammatory mediators leads to the most dramatic immediate hypersensitivity reaction known as ______.
What will be an ideal response?