A newly evolved species may take over an ecological role or ecological niche that is already occupied
if the new species has:a.
the ability to alter or change the environmental parameters.
b. features that make it competitively superior to the original occupant of that niche.
c. the ability to evolve through natural selection, whereas the original occupant cannot
continue to evolve.
d. the ability to grow to a larger size, thus providing it with a selective advantage.
e. fitness that is almost as high as the fitness of the original species.
B
You might also like to view...
The two macronutrients necessary for the production of ATP are
a. calcium and iron. b. calcium and phosphorus. c. phosphorus and nitrogen. d. phosphorus and potassium
The hormones of the birth control pill shut down (directly) the
a. anterior pituitary b. posterior pituitary c. ovary d. corpus luteum
In the late 1960's, Robert Paine conducted landmark studies on diversity in the rocky intertidal zone comparing the species diversity in control plots with diversity in experimental plots from which he removed the top predator, sea stars
After 5 years, 15 species of intertidal invertebrates lived in the control plots, while the experimental plots were dominated by only two species, one mussel and one barnacle. Why did species diversity most likely remain high in the presence of a predator? A. The sea star kept the mussel and barnacle populations low enough to prevent competitive exclusion from occurring. B. The sea star kept the mussel and barnacles from developing a mutualistic relationship. That, in turn, kept their populations low. C. The mussel and the barnacle parasitized the sea star, keeping populations low enough to prevent competitive exclusion from occurring. D. The sea star developed a mutalistic relationship with the mussel and barnacle, keeping their populations low and preventing competitive exclusion from happening.
Why is it more difficult to obtain sufficient oxygen at higher altitudes? What will be an ideal response?