Although a tropical fish aquarium is at best an approximation of a natural habitat, what constituents does the aquarium share with the natural habitat that are important to understanding the behavior of a particular species?
What will be an ideal response?
Members of different species, members of the same species, and non-living constituents of the environment.
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If we are to manage a population of game animals for the maximum number that can be harvested while not impacting the potential for the population to grow, where on the curve would we want to keep our population in terms of size or number of individuals?
1.at point A
2.at point B
3.at point C
4.at point D
__________ are alternative forms of a gene that govern the same feature, such as eye color, and
occupy corresponding positions on homologous chromosomes. a. Alleles b. Loci c. Homozygotes d. Coupled traits e. None of these
The invasion of the land by amphibians posed a number of challenges requiring evolutionary innovations. Which one of the following does NOT match a challenge with a corresponding adaptation found in amphibians?
A. The force of gravity was greater without water's buoying effect, selecting for well-muscled legs. B. Eggs dry out in a terrestrial environment, selecting for the amniotic egg. C. Additional oxygen was needed for larger muscles, selecting for the partially-divided heart and pulmonary circuit. D. Gills tend to collapse out of the water, selecting for lungs and cutaneous respiration.
What distinguishes the mycoplasmas from others within Bacteria?
a. large size b. contain lipoteichoic acids c. lack of cell wall d. all of the above