The speed of a biological reaction can depend upon many factors including pH, substrate concentration, and .

There's various factors that affect biological reaction. If this is just high school biology, teacher probably wants the answer temperature. As temperature increases the rate of reaction increases.

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.