List the cell types above according to the way in which they obtain their energy. include viruses in your answer as well:
(a) autotrophic:
(b) heterotrophic:

Many organs are involved in the processes of keeping the blood and the body clean. when poisonous or harmful substances are in the blood, they are absorbed by the and released in a less harmful form. when wastes are present in the blood, they are filtered out and removed from the body by the

Cells destroy body cells infected by a virus or bacteria.

Using meiosis, the sporophyte produces spores that are .