Codominance involves A. multiple alleles
B. multiple genes
C. multiple chromosomes
D. multiple traits ​

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

What element is able to combine with itself and hydrogen to form large molecules ?

What are two examples of conduction that we use everyday