Allen’s Rule refers to organisms in cold climates with round body form which has a smaller surface area to volume ratios. Larger bodies are more compact and retain heat.
<span>Bergmann’s Rule refers to organisms in which body size is large in cold climates and small in warm climates. Large bodies have a smaller surface area to volume ratios. In warm climates where you need to expel heat, so bodies are smaller and more linear.</span>
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.
Answer:
people may get sick or kill their crops by using water thats from unfilter or unsustainable, they're could sometimes be bad chemicals and bacteria in the water
