Groups of animals may be large or small. The size of the group depends on what the animals need. Animal groups tend to be _______ if there is plenty of food. (smaller or bigger)
bigger
Groups of animals may be large or small. The size of the group depends on what the animals need. Animal groups tend to be _______ if there less food. (smaller or bigger)
smaller
List 3 things affect an ecosystem?
temperature, pollution, natural disasters