Answer: Cells are the basic building blocks of all living things. The human body is composed of trillions of cells. They provide structure for the body, take in nutrients from food, convert those nutrients into energy, and carry out specialized functions.
Explanation:
The liver is at a #3 level of organization, an organ..which has a specific job to do in the body.
Answer + Explanation:
Organisms use energy to survive, grow, respond to stimuli, reproduce, and for every type of biological process. The potential energy stored in molecules can be converted to chemical energy, which can ultimately be converted to kinetic energy, enabling an organism to move.
Answer:
The fusion event is when the virus membrane and the host cell membrane fuse together allowing a virus to enter. It does this by attachment or adsorption onto a susceptible cell; a cell which holds a receptor that the virus can bind to.
Explanation: