Intrinsic and environmental factors affecting the population size.
Explanation:
Size of any population is determined by Intrinsic and environmental factors. Population size of any species is regulated by the factors such as death rate, birth rate, carrying capacity of the system, limiting factors and their availability, rate of migration etc. All these factors should considered to predict changes to a population of rabbits in in a meadow.
It should include the species of a rabbit. There are multiple types of rabbit and that would be considered the independent variable (where there are different things).
It should aloso include the environment; Are rabbits comfortable living in hot or cold weather areas?
The Euglena was green because it had chloroplasts in it, just like plants. The body structure at the base of the tail that relates to this is the photo receptor. These two enabled it to photosynthesize food like plants, but it could also take food from its surroundings like animals.
