Can you guys help me, please Why is it necessary for living organisms to have enzymes to speed up chemical reactions?

enzymes are biocatalysts made up of proteins which increases the rate of bio chemical reaction by lowering down the activation energy

Explanation:

since activation energy of the chemical reaction gets lowered by enzymes as a result it speed up the process of metabolism in living organism

a

explanation:

many plants naturally reproduce this way, but it can also be induced artificially. horticulturalists have developed asexual propagation techniques that use vegetative plant parts to replicate plants. success rates and difficulty of propagation vary greatly. monocotyledons typically lack a vascular cambium and therefore are harder to propagate.

volcanoes (an event in the geosphere) release a large amount of particulate matter into the atmosphere. these particles serve as nuclei for the formation of water droplets (hydrosphere). rainfall (hydrosphere) often increases following an eruption, stimulating plant growth (biosphere).