The study of the cause of disease is known as (epidemiology/etiology/pathology)
What will be an ideal response?
etiology
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Which of the following is not one of the major transport systems of the inner mitochondrial membrane?
A) porin channel B) dicarboxylate carrier C) tricarboxylate carrier D) pyruvate carrier E) ATP-ADP carrier
Using antigen-antibody reactions to identify bacteria is an example of
the genetic approach to bacterial identification. the immunological approach to bacterial identification. the phenotypic approach to bacterial identification. the physiological approach to bacterial identification. the epidemiological approach to bacterial identification.
Speciation often occurs when a habitat becomes more heterogeneous. In Lake Victoria different species of cichlids are found in different areas of the lake. The best explanation for this speciation is that
A) natural selection favored different heritable variations in different parts of the lake. B) male cichlids that lived in deep water needed to be seen by females, so they became colorful. C) food was scarce in the lake, so some fish had to learn how to scrape algae, some had to learn to eat insects, and some had to learn to bite leaves. D) humans selected for many different traits in cichlids in order to market them to the aquarium trade.
This figure shows the geological history of North and South America and the closing of the Isthmus of Panama
If a single species were distributed throughout the region indicated by the arrow in the left-most panel, and today is found as two separate species, one in the Atlantic Ocean and one in the Pacific, would this be more likely to be an example of allopatric speciation by the dumbbell model or the peripheral isolate model? Why? What will be an ideal response?