In sponges, internal fertilization occurs when?
a. the sperm is deposited directly into the female sponge.
b. the sperm is taken in from the surrounding water.
c. the female releases eggs into the water to be fertilized.
d. the female takes up sperm packets that were deposited by the male.

I think the correct answer among the choices listed above is option B. In sponges, internal fertilization occurs when the sperm is taken in from the surrounding water. Hope this answers the question. Have a nice day.

Iwould say overuse ( but not 100% sure ) in the u.s. we tend to overuse water by leaving it running, throwing it away, taking long showers, etc.

The answer would be c, white eyes are homozygous recessive. in the early 1900s, morgan conducted several experiments with vinegar  flies (drosophila). one  sample revealed an anomaly: a  white-eyed, single male fly. he attempted to breed this fly with the typical red-eyed females. the offspring were all red-eyed. using flies from this new generation (brother-sister pairs)  produced some red-eyed and a few white-eyed flies. the white-eyed were all male. in later experiments, he was able to produce white-eyed females. this proved that white eyes are not lethal to either sex (ruling out a and b). since the percentage of white eyes to red eyes is so low, white eyes are not a dominant trait. it would be a recessive trait.