Options are:
I. Echinoderm..
II. animals.
III. heterotrophs.
IV. Echinoids.
V. slow and inefficient.
VI. better adapted.
VII. threatened.
VIII. dangerous.
Given those answer options, answer the question: Fact 1: Having no natural predators increases population size. Fact 2: Organisms have to be better adapted as population size increases. Given the two facts above, what does having no natural predators mean creatures have to be?
A:
VI.