Which of the following is an example of both passive and carrier-meditated transport?
a. osmosis
b. exchange pump
c. endocytosis
d. facilitated diffusion
Answer: d. facilitated diffusion
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Explain how Escherichia coli can grow with a doubling time of 20 minutes when chromosome replication takes 40 minutes
What will be an ideal response?
Which of the following is a major problem for sessile animals?
a. As adults, they are haploid. b. They are unable to sexually reproduce. c. They are limited in the variety of food they can consume. d. They are not capable of locomotion during their lifetime. e. They are unable to escape unfavorable environmental conditions.
Which of the following statements about prostaglandins is not true?
A. Prostaglandins promote inflammation. B. Prostaglandins can only constrict blood vessels. C. Prostaglandins are made in the renal medulla. D. Prostaglandins can lead to pain and fever.
Under which condition will a population experience growth?
A. When N is less than K B. When r equals zero C. When N equals K D. When dN/dt equals zero E. When N equals zero