In a vial of drosophila, a research student noticed several female flies (but no male flies) with "bag" wings each consisting of a large, liquid-filled blister instead of the usual smooth wing blade. when bag-winged females were crossed with wild- type males, 1/3 of the progeny were bag-winged females, 1/3 were normal- winged females, and 1/3 were normal- winged males. explain these results.

The similarities of organisms in which two areas numbered above provide the best evidence for common ancestry between organisms in both locations?

Ineed to get this test done which of the following statements is correct in hour our immune system responds to a potential pathogen? a.) the skin will be the first line of defense, and then the many phagocytes in the bloodstream will attempt to consume the possible pathogen. b.) b cells will start reading the antigen code immediately and call t cells to assist in destroying the pathogen. c.) the adapted immune system will call on the innate immune system to destroy the pathogen. d.) the t-cells in the adapted immune systems are the first to recognize the pathogen

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