Answer:
the answer is c
Explanation:
fossil fuels in the long run will end up destroying the earth, and we will run out of them. alternative fuels and energies are sustainable and can be used forever without harming the environment.
Lymph. Lymph is a fluid that circulates throughout the body in the lymphatic system. It forms when tissue fluids/blood plasma (mostly water, with proteins and other dissolved substances) drain into the lymphatic system. It contains a high number of lymphocytes (white cells that fight infection).
Answer: Prior to entry, a virus must attach to a host cell. Attachment is achieved when specific proteins on the viral capsid or viral envelope bind to specific proteins called receptor proteins on the cell membrane of the target cell.