What are the two functions of the cell membrane

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

Describe the two types of vascular tissue

The most famous fossil called archaeopteryx is which of the following? a dinosaur a fern a fish a bird