Jimmy finds a hunk of something. It appears to be an element. It melts at 500*C and when it was run over by a train, it got crushed and shattered. What is it likely to be? * A. Metal

B. Nonmetal
C. Metalloid

Name the following: (a) category of pathogen that causes diseases, like common cold and mumps. (b) the microorganism that requires a host to produce.

Epinephrine is a hormone released from the adrenal gland of the body, most often in a stressful situation. it is known as the "fight-or-flight" hormone. one way that it causes a response in the body is to activate receptors on muscle cells. where are these cellular receptors located? a. on the cell membrane b. in the nucleus c. on the cell wall d. around the mitochondria

Match the types of competition to their descriptions