Match each mechanism of horizontal gene transfer with its definition:
A. Transduction i. DNA transfer between two linked bacterial cells
B. Transformation ii. bacteria picks up environmental DNA
C. Conjugation iii. gene transfer via a bacteriophage
A- iii, B- ii, C- i
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The carrying capacity of an environment is
determined by the a. net rate of reproduction of the female members of the population. b. population’s logistic growth. c. number of reproductively capable individuals in the population. d. population’s biotic potential. e. sustainable supply of resources it provides.
Serious detrimental affects of global warming include
a. intense rains and flooding. b. more frequent and intense droughts. c. rising sea levels in coastal areas. d. the disappearance of glaciers thus wiping out some fresh water supplies. e. all of these.
Which of the following species would NOT be considered a bilaterally symmetrical protostome?
a. Octopus b. Sea urchin c. Sponge d. B and C e. all of the above
In many species of fireflies, males flash to attract females. Each species has a different flashing pattern. This is an example of:
A) natural selection. B) behavioral isolation. C) geographic isolation. D) allopatric speciation.