Well, depending on how long the migration is, many of the animals (mainly birds) could get sick and die, lowering the population. They could be shot by hunters, lowering the population. The children of the population could get left behind and lose their way, lowering the population. I'm not entirely sure how the population could grow other than them finding and staying with another group of their own kind. hope I was helpful! :)
Nitrogen isn't found in carbohydrates or lipids
The plant species that live in the colder environment have some adaptations that makes them survive in that conditions
These plants have a well developed vascular system due to which they have the ability to trap every inch of sunlight available for the process of photosynthesis.
Some of the plants shed their leaves and stay in dormant conditions.
Evergreen trees have thick waxy coating that prevents the loss of water.
The plants that grow in arctic regions are small and they grow close to the ground in a specific shape that helps them to shed snow from them.
Explanation:
Cell-mediated immunity is primarily driven by mature T cells, macrophages, and the release of cytokines in response to an antigen. T cells involved in cell-mediated immunity rely on antigen-presenting cells that contain membrane-bound MHC class I proteins in order to recognize intracellular target antigens.