An increase in carbon dioxide increases the temperature of Earth. This increase leads to in ecosystems. The increased temperature in cold regions was observed to cause the melting of snow. So, species living in these regions will face .

After which event could you say that evolution has occurred? question 1 options: an allele frequency changes in a population. a white-eyed fly is born into a population of brown-eyed flies. a new predator comes into an environment. an animal gets fat.

Why do carbohydrate molecules function so well as fuel for the body?

Some birds look for food near cattle and other livestock. the movement of the cattle churns up the ground, making insects available to the birds. the cattle appear to be unaffected by the presence of the birds. what kind of relationship exists between the birds and the cattle? o a. parasitism o b. commensalism o c. predation o d. mutualism