How does the introduction of predators to a habitat decrease the effects of competition between two other species?
What will be an ideal response?
Predators can control the population of one of the species that is in competition with another species. If the species being preyed upon is dominant over the other species, then the effect of the predator will be to give refuge to the less successful competitor and it will be able to withstand the competitive pressures of the dominant competitor.
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What type of virus structure does the adenovirus in Figure 13.18c represent?
A. head and tail B. triangular C. icosahedral D. helical E. spiral
Which of the following statements is true regarding lymph and the lymphatic system? Select all correct choices
A. Lymph is rich in proteins filtered out of the bloodstream. B. Lymph contains water filtered out of the bloodstream. C. The lymphatic system is composed solely of the same vessels and arteries forming the circulatory system. D. The lymphatic system is composed of its own distinct set of vessels, through which blood does not travel.
Which type of media is designed to support the growth of one group of organisms, but not another, by containing antimicrobials, dyes, or alcohol?
a. Selective b. Nutritive c. Differential d. Definitive
The majority of human DNA does not code for genes.
a. true b. false