Diatoms perform photosynthesis, so they fill this role in the community
A) Primary consumers
B) Producers
C) Decomposers
D)Carbon dioxid
D) Producers
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One hundred million sperm are produced daily in the
a. interstitial cells. b. prostate. c. seminiferous tubules. d. vas deferens. e. epididymis.
Which of the following would be an example of sexual selection?
A. a sex ratio of 5 females to 1 male B. females avoid aggressive males C. male deer with poor eyesight are more often killed by accidents D. well-nourished females produce more offspring
Quorum sensing is ___:
a. the ability to respond to changes in population density b. a characteristic allowing secretion of a matrix c. dependent on direct contact among cells d. associated with colonies in broth culture
Organs that are commonly affected by drug toxicity include the kidneys and the liver.
Answer the following statement true (T) or false (F)