Conventional external fertilization involves both males and females extruding gametes into the environment where they fertilize separate from the parents;internal fertilization involves sperm being transferred to the female with fertilization inside the female.A leech utilizes
A)conventional external fertilization.
B)standard internal fertilization.
C)internal fertilization but by hypodermic impregnation that penetrates the integument.
D)no transfer of sperm at all but regenerates asexually.
E)None of the choices is correct.

Question

Quizplus · Accepted Answer

Leeches use a unique method of internal fertilization called hypodermic impregnation, where the male uses a needle-like structure called a penis to penetrate the female's skin and deposit sperm directly into the reproductive tract. This method is also known as traumatic insemination.

Conventional External Fertilization Involves Both Males and Females Extruding Gametes