When extreme contest competition occurs within a population,
A) all individuals receive insufficient resources for survival and reproduction.
B) local extinction may occur.
C) only a portion of the population suffers.
D) the growth rate of the population increases.
C
You might also like to view...
Roots obtain cations through cation exchange, where soil particles absorb ____ provided directly or
indirectly by the root, and thus release cations.
a. Cl? b. K+ c. H+ d. water e. CO2
Outline the two parts of the eukaryotic cell cycle and describe the three main checkpoints in cell cycle regulation. What will be an ideal response?
Meroblastic cleavage occurs in _____
A) sea urchins, but not in humans or birds B) humans, but not in sea urchins or birds C) birds, but not in sea urchins or humans D) both sea urchins and birds, but not in humans
The event that triggers fruit formation is the growth of a pollen tube through the carpel of a flower. Identify a reasonable hypothesis about the basis of this effect
A) Pollen tubes grow in response to a cytokinin produced by the carpel. B) Pollen tubes grow in response to abscisic acid. C) The growing pollen tube produces ethylene. D) The growing pollen tube produces auxins and/or gibberellins.