Question - Which ecosystems are more productive, tropical rain forests or northern coniferous forests and why?
Energy flow in ecosystems - In the pre-1850 grasslands of North America there were hundreds of millions of grazing animals such as buffalo, antelope and deer. At the same time there were many fewer meat eaters, such as wolves. E ...
Photosynthesis and dense coverings - What happens to photosynthesis when there is a dense covering such as thick forests, clouds or dust from volcano eruptions. What happens to caron dioxide and oxygen levels. What test can be done in ...
Animal Behavior - Suppose a tree squirrel living in the conifer forests near La Grande eats seeds that it extracts from pine cones and fungi that it finds on the forest floor. Also, suppose that currently it takes an a ...