Answer:
Sexual competition often occurs within complex social environments where male displays can be received by potential mates, rivals, or both at once. In brown-headed cowbirds’ breeding flocks, for example, multiple males sometimes vie directly for a single female’s attention; at other times males have opportunities to sing to females without interference. It was tested whether cowbirds vary the intensity of their signalling across contexts like these. The songs were recorded from males courting females both with and without a male competitor in sight. The recordings were now played to solitary, naïve females in sound attenuation chambers, and also to a naïve aviary-housed flock. The songs males had produced when they could see their competitors were more attractive, eliciting more copulatory postures from naïve females and more approaches from birds in the flock.
Explanation:
What passes through the plasma membrane- and what doesn't- depends on the chemical and physical properties it has. Some membranes allow certain materials to pass while others do not. The speed of which molecules pass the plasma membrane differ due to the size, temperature, pressure, and electrical currents. If the temperature of the water and other molecules were low, or the molecules were bigger, the rate at which they pass through the plasma membrane would be very slow.
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Answer:
pyocyanin production
Explanation:
Pyocyanin has various pharmacological effects on prokaryotic cells; its biological activity is related to similarity in the chemical structure to isoalloxazine, flavoproteins, flavin mononucleotide and flavin adenine dinucleotide compounds.Hope it helps:)I also took the test and got it right:)
Answer:
A B E
Explanation:
I did the question on edge
Answer:
false the microwave makes heat but doesn't take energy away from the food