A type III survivorship curve is characteristic of:
a. monkeys
b. horses
c. eagles
d. sea urchins
e. humans
d
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Plasma membrane proteins might be involved
in
a. cell-to-cell recognition. b. signal recognition. c. transport of nutrients. d. metabolic activities. e. all of these
Explain which features of cyanobacteria enable them to survive in a variety of environments.
What will be an ideal response?
Which of the following will increase the speed of an action potential moving down an axon?
I) Action potentials move faster in larger diameter axons. II) Action potentials move faster in axons lacking potassium ion channels. III) Action potentials move faster in myelinated axons. A) only I and II B) only II and III C) only I and III D) I, II, and III
Growing bacteria that degrade an environmental pollutant, which is also toxic to the cells at artificially high concentrations, might require ________ to obtain a sufficient population for biochemistry studies
A) a continuous batch culture B) a second growth substrate to keep the culture in exponential growth phase C) steady state growth kinetics D) the use of a chemostat