Which of the following marine ecosystems consists of an aphotic zone?
a. the intertidal zone
b. the open ocean
c. the wetland
d. the coastal ocean

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.