Answer:
D
Explanation:
Carbon is a basis for all life on earth
Answer:
B cell membranes protect a cell,and cell walls do not
Explanation:
Immunofluorescence or immunoperoxidase assays are commonly used to detect whether a virus is present in a tissue sample. These tests are based on the principle that if the tissue is infected with a virus, an antibody specific to that virus will be able to bind to it.
The carbon dioxide produced when humans breathe out
Answer: In the case of the celery in salt water, water would leave the cells and the stalk will become wilted.
In the case of the beaker with plain water, the water will move into the cells in the stalk. You would see this better if the stalk was already wilted.
Explanation:
