As we inhale, air moves from the trachea to the pharynx.
a. true
b. false
Ans: b. false
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Apoptosis is responsible for all of the following EXCEPT
a. the ability of newly born kittens to open their eyelids. b. the generation of body axes. c. destruction of the tadpole's tail. d. destruction of some larval tissue in a developing butterfly. e. removal of webbing between human fingers.
With __________ speciation, populations in physical contact speciate. Fill in the blank(s) with the appropriate word(s)
In mammals, an egg fertilized by one sperm divides repeatedly (1-2-4-8-16-32-64, etc.). At the 64-cell stage, only three cells go on to become the embryo while 61 grow to become the fetal side of the placenta. In plants, fertilization likewise results in the development of an embryo and nourishing endosperm. However, how does this process differ from the mammal embryo and placenta?
What will be an ideal response?
Acyclovir is used to treat
A. influenza A virus. B. respiratory syncytial virus. C. shingles, chickenpox, and genital herpes. D. HIV. E. hepatitis C virus.