What are organisms?
a. building blocks of proteins and origin of life
b. excess energy released by unstable atoms
c. groups of molecules that influence each other
d. the variety, distribution, and abundance of living things in an ecosystem

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

Last week i was assigned a thematic. we have groups of three but the people i was assigned with haven't been in school for days. i would appreciate if anyone can me with my thematic . i highlighted most of the important steps and i circled my thematic topic. in desperate need : ( its due on february 19

Ais a landform that is formed at the mouth of a river from the deposition of sediment carried by the river as the water flows.