The population in the figure 4 grows
A) according to the exponential model
B) according to the logistic model
C) with density dependent regulation
D) A and C.
E) B and C
Ans: E) B and C
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In the mammalian digestive system, what is the primary site of nutrient absorption?
A. pharynx B. stomach C. small intestine D. large intestine E. pancreas
Small circular molecules of “extra” DNA in bacteria
a. are plasmids. b. are DNA fragments from their main chromosome. c. result from the activity of restriction enzymes. d. are eventually degraded. e. are none of these.
Selection is the differential reproduction of genotypes, resulting from their variable fitness
Indicate whether the statement is true or false
If one strand of DNA has the base sequence AAGCAA, the complementary strand has which of the following sequences?
A. UUCGUU B. TTCGTT C. AAGCAA D. UTCGTU E. TTCGTG