Which makes bacterial infections difficult to defeat?
O
A. Bacteria reproduce quickly.
O
B. Bacteria live inside the body's cells.
O
C. Macrophages cannot kill bacteria.
O
D. Killer T cells cannot reproduce.

1. the is the thinnest part of the earth. 2. the is the thickest part of the earth. 3. what metals are mentioned in the text?

What characteristic make legumes a good food source for food insecure populations

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