How do the sperm cells get from the stigma to the ovules?

a. they slide down the petals to the bottom of the flower.
b. they travel through pollen tubes.
c. they travel along filaments
d. insects carry the sperm cells from the stigma to the ovules.

the answer is B. They travel through pollen tubes

is this a psat question, if so do not cheat try your best.

image result for how many calories of energy will 20 grams of carbohydrates provide in one gram provides 4 calories

consuming the right balance of protein, carbohydrates and fat can you maintain a healthy weight and optimize your energy levels. protein and carbohydrates both contain 4 calories per gram, while fat provides 9 calories per gram.