What percentage of human sperm cells carry an X chromosomes

50%

Explanation:

because 50% comes from the male and 50% from the female

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.

i believe the answer is c