Lake Victoria in East Africa is home to as many as 600 species of cichlid fish. Genetic data indicates that these fish originated from a small number of fish that colonized the lake from other lakes and rivers within the last 100,000 years. The females of two closely related species of these fish choose their mates by the color of the males. In one species, the back of the male is bright blue and in the other the back of the male is red. What process is the likely reason that these two species of fish evolved in this lake

about 40,000,000 results (0.81 seconds)  

search results

what do the different brain waves do?

explanation:

brainwaves are produced by synchronised electrical pulses from masses of neurons communicating with each other. brainwaves are detected using sensors placed on the scalp. brainwave speed is measured in hertz (cycles per second) and they are divided into bands delineating slow, moderate, and fast waves.

a plastic spoon that has a temperature of 78° f is placed into a bowl of soup that has a temperature of 84° f. which of these correctly describes what will happen?

energy as heat moves from the soup to the spoon.