If a coelom had been present in a species but was then lost over time, which function would you hypothesize could be most affected?
A. reproductive.
B. muscular.
C. nervous.
D. digestive.
Answer: B
You might also like to view...
A change in the rate or frequency of movements in response to environmental stimuli is called taxis
Indicate whether the statement is true or false.
Fungal mycelia _____.
A. have a small surface area to prevent water loss B. are found almost exclusively in dry areas C. are found almost exclusively in aquatic environments D. have a large surface area composed of branching hyphae
Penicillin is an irreversible inhibitor of the transpeptidases that catalyze the reactions that give the cell walls of some bacteria their rigidity. The antibiotic ________.
a) works by fitting into the active sites of these enzymes forming a covalently bound complex b) works by sitting into the regulatory sites of these enzymes c) does not compete for binding to the enzymes active site d) none of the choices is correct
An action potential can best be described as a _____.
A. trigger zone B. kinetic activity C. brief reversal in the polarity of the electric gradient across the plasma membrane D. peak of energy that does not resolve to its former state E. brief increase in the polarity of the electric gradient across the plasma membrane