Enzymes are important catalysts that speed up the rate to chemical reactions in cells. How do they accomplish this? O A. by lowering the required activation energy for the metabolic reaction
O B. by preventing molecules from colliding
O C. by providing all the proteins required for a metabolic reaction
OD. by raising the required activation energy for the metabolic reaction

for  example, forests have higher evapotranspiration than other ecosystems,  such  as grasslands, because of their deeper roots and greater leaf area. thus forests have a net moistening effect on the atmosphere and become a moisture source for downwind ecosystems.

answer : haversian

[explanation: -(compact bone is organized as parallel columns, known as haversian systems, which run lengthwise down the axis of long bones. these columns are composed of lamellae, concentric rings of bone, surrounding a central channel, or haversian canal, that contains the nerves, blood vessels, and lymphatic system of the bone)]

radon is correct hope this

you're crazy : )