What would be a possible disadvantage of asexual reproduction? Ability to reproduce in the absence of a mate
Results in low genetic variation of the species
Allows for more genetic variation in the offspring
Takes less time to produce offspring

Allows for more genetic variation in the offspring

Explanation:

The major disadvantages of asexual reproduction are: Lack of diversity. Since the offsprings are genetically identical to the parent they are more susceptible to the same diseases and nutrient deficiencies as the parent. All the negative mutations persist for generations.

haploid cells;

i'm thinking (a) to keep sand in place; ////////////

explanation: a sand fence or sandbreak, like a snow fence, is used to force windblown, drifting sand to accumulate in a desired place. sand fences are employed to control erosion, sand dune stabilization, keep sand off roadways, and to recruit new material in desert areas.