The flagella of bacteria rotate at their bases like propellers
Indicate whether the statement is true or false.
ANSWER: True
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How do gene duplication and exon shuffling lead to new genes?
What will be an ideal response?
Plasma that leaks out of the blood in the capillary beds is returned to the venous circulation by
A) the lymphatic system. B) the small intestine. C) the inflammatory response. D) suppressor B cells.
While the preservation of a landscape is often intended for one particular organism, often times other species will also benefit.
Answer the following statement true (T) or false (F)
Type II survivorship curves ____.
A. are characteristic of humans and elephants B. indicate a fairly constant rate of death at all ages C. indicate a high mortality rate in the very young D. are characteristic of species in which most individuals live a relatively long life and die of old age E. are typical of species with high biotic potentials