Use the drop-down menus to complete each sentence.
is an interaction in which one organism kills and eats another.
is an interaction in which two organisms require the same limited resources,
is an interaction in which organisms work together to improve their survival.

Find and describe the climate zone in which you live,where else in the world do you find this climate zone? do you have any ideas about why the climates might be similar?

Amarine ecologist has constructed the conceptual model shown in the diagram. what predictions can be made from using this model? where the tertiary consumers get their energy how often primary producers are able to reproduce when bacteria and fungi initiate the process of decomposition whether other secondary consumers are present

Which level of taxonomy has the fewest organisms?