Answer:
D
Explanation:
Hormones are bigger than the cell pores hence cannot pass through the cell membrane to influence biochemical processes. Therefore, hormones (such as glucagon and insulin) bind onto receptors on the cell membrane, then transmembrane proteins, such as the G-protein, change conformation activating the secondary messengers inside of the cell. Cyclic- AMP is a major secondary messenger significant in activating protein kinases.
Answer:
E or "The dust found in the interstellar medium aggregates to form the disk."
Explanation:
Used G00GLE, and it said "One says that galaxies were born when vast clouds of gas and dust collapsed under their own gravitational pull, allowing stars to form."
(couldn't use the search engine's actual name)
ionic bonds : These are bonds formed from the donation and acceptance of electrons between elements, giving rise to strong compound
Covalent bonds: bonds formed when electrons are shared between elements giving rise to compounds
metallic bonds; are bonds found only in metals.
Answer:
B. Erosion
it is breaking apart ; weathering ; breaking down; eroding
Nearsightedness is the answer.
