The names of the extraembryonic membranes are derived from their function in animals that produce shelled eggs.
Answer the following statement true (T) or false (F)
True
The names of these membranes are derived from their functions in birds.
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Bioassays
a. are performed in a test tube using killed cells. b. expose a population of living organisms to a test substance. c. are used for chemotherapy. d. are none of the above.
Driver mutations provide a growth advantage to a tumor cell. Which type of mutation is known to accumulate in cancer cells but has no direct contribution to the cancer phenotype?
A) insignificant mutations B) carrier mutations C) indirect mutations D) alteration mutations E) passenger mutations
Who found and named Pithecanthropus?
A. Ernst Haeckel B. Eugene Dubois C. Rudolf Virchow D. Davidson Black E. G. Elliot Smith
The colors of light that are most effective for photosynthesis are ______.
a. red, blue, and violet b. green, yellow, and orange c. infared and ultraviolet d. all color are equally effective