X-rays have a higher frequency and energy than visible light but are less energetic than gamma rays. Thus, the first option is correct.
Glucagon acts on the receptors of the liver cell. The gpcr include a internal signaling in the cell following the heterotrimeric G-proteins dissociates. It activates a pathway that results in the breakdown of glycogen to glucose or the de novo synthesis of glucose in the cells.
The answer is a) because when muscles contract, myosin heads attach to actin and breaks down ATP. Energy is released, pulling actin filaments and muscle contracts. Essentially actin and myosin filaments are sliding past each other.
Answer:
Without decomposers, dead leaves, dead insects, and dead animals would pile up everywhere. And most importantly decomposes make vital nutrients available to an ecosystem primary producers- usually plants and algae.
