The graph below depicts the frequency of expression of the range of leg lengths in a population of crickets: in this species, leg length is directly related to jump height: the longer the legs, the higher the cricket can jump. the crickets are being preyed on by a newly introduced species of rodent, and the best way to evade the predator is to jump out of reach. which of the following graphs represents the range of leg length most likely to result from this selection pressure over a long period of time? the peak of the bell curve has shifted to the left, with a greater frequency of short leg length and a lower frequency of crickets with longer legs. the peak of the bell curve has shifted to the right, with a greater frequency of crickets with long legs and a lower frequency of crickets with short legs. the peak of the bell curve is still in the center, but at a much higher value with steeper decline on either edge. this means there was an increase in crickets with average leg length and fewer crickets at either extreme of leg length. there are now two peaks on the bell curve, with a dip, or decrease, at the center, representing a lower frequency of crickets with average leg length and increased frequencies of both long and short legs.

The correct answer is option:

The peak of the bell curve has shifted to the right, with a greater frequency of crickets with long legs and a lower frequency of crickets with short legs.

The given condition would lead the directional selection of the crickets with long legs. Directional selection leads to shifting of curve in one direction, which is more suitable.

The crickets with short leg get easily caught by predators, so, after sometime, there would be a decrease in number of the crickets with short leg. At the same time, the crickets with long leg would manage to save themselves and their number would comparatively increased.

4.) metal

"-the movement of carbon from the nonliving environment into living things and back to the environment

-carbon is the essential component of proteins, fats, and carbohydrates (which make up all organisms)

-carbon exists in air, water, and living organisms

-producers convert carbon dioxide in the atmosphere into carbohydrates during photosynthesis

-bacteria in the atmosphere cycles through the system in filtration units

-in cellular respiration, carbon is released back into the atmosphere as carbon dioxide

-some carbon is stored in limestone (forming one of the largest "carbon sinks" on earth)

-largest carbon reservoir on earth= limestone

-carbon stored in the bodies of organisms as fat, oils, or other molecules may be released into the soil or air when the organism dies

-this may form deposits of coal, oil, or natural gas (fossil fuels, which increased the atmospheric carbon dioxide)

-fossil fuels store carbon left over from bodies of organisms that died millions of years ago

-they are located in the surface of earth, deep within the earth and beneath the ocean floor."