Active transport may be described as all of the following EXCEPT
a. is concerned with establishing the resting potential of a neuron.
b. counters the process of diffusion.
c. allows transport of atoms across the plasma membrane of the neuron against the
concentration gradient.
d. uses energy to power transport.
e. physically blocking transport.
E
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The lobster mushroom results when a fungus acts as a parasite to
a. cow dung. b. a fungus. c. plants. d. skin
Which neurotransmitter may function to regulate emotions and is involved in pathways that control complex movements?
A) dopamine B) serotonin C) norepinephrine D) synapse
Microbial antagonism means that
A) good microbes are replaced by invading pathogenic microbes. B) good microbes establish themselves in the host and prevent invasion by pathogenic microbes. C) the host is predisposed to disease due to the microbes they harbor. D) pathogenic bacterial growth is encouraged by the presence of established host organisms.
Which of the following factors could be important in determining a species' fundamental niche? Check all that apply.
A. presence of a predator/parasite B. soil type C. seasonal temperatures D. salinity E. presence of a commensalist