When two lineages originate from the same branch point, what are they referred to as?
What will be an ideal response?
Sister taxa
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Which of the following observations is not part of natural selection as posed by Darwin?
A. Individuals within a population differ in terms of reproductive success. B. Individuals within a species exhibit variation. C. Organisms compete for available resources. D. Organisms become adapted to conditions as the environment changes. E. All of these observations are part of natural selection as posed by Darwin.
A red-eyed female fruit fly is crossed with a red-eyed male fruit fly. All of the female offspring have red eyes but only one-half of the male offspring are red-eyed. The other half of the male offspring have white eyes. In this example, eye color in fruit flies
A. is influenced by the environment. B. is an X-linked trait. C. is controlled by several genes. D. exhibits lack of dominance.
Which association is NOT correct?
A. Lung cancer - symptoms include coughing, shortness of breath and blood in the sputum B. Cystic fibrosis - infectious disease that is caused by the bacterium M. tuberculosis C. Pneumonia - is a viral, bacterial or fungal infection that cause the bronchi to fill with pus and fluid D. Emphysema - chronic, incurable lung disorder in which the alveoli distend and the surface for gas exchange is reduced E. Pulmonary fibrosis - fibrous connective tissue builds up in the lungs preventing them from inflating properly
The protozoans known as apicomplexans
A) are motile. B) reproduce by schizogony. C) are intracellular parasites. D) are motile intracellular parasites. E) reproduce by schizogony and are intracellular parasites.