Answer:
A novel coronavirus is a new coronavirus that has not been previously identified.
Explanation:
Answer:
Antibodies are produced by __type B__ lymphocytes; cell-mediated immunity is provided by __type T__ lymphocytes.
Answer:
A. Antagonist
Explanation:
The triceps, acting in opposition, is called the antagonist. Because the two muscles are located on opposite sides of the arm, the triceps must relax enough to allow the biceps to tense and contract during a curl. As it contracts, it shortens. As the triceps relaxes, it lengthens. (google)
The reason we have the Corona Virus is because some huh decided to eat a bat for some reason.
