Why are enzymes important to cells?

they form the two layers of membranes.

they bring about chemical reactions.

they provide structural support.

they store large quantities of energy.

Why is excretion necessary to maintain homeostasis?

What did hunter gathers do to alter the environment?

Matthew decided he wanted to hike up mount everest. on his way to the top, it began to snow and the temperature dropped to -10°f. matthew forgot to wear a heavy jacket so his body began to shiver beyond control. in this case, matthew's body shivering is the to a drop in temperature. * 0 points reflex stimuli responce environmental facto