Multiple Choice
Individuals clustered in the same area that release their gametes into the water at the same time are engaging in which of the following?
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44. Animal Reproduction
Animal Reproduction
Multiple Choice
How do egg cells enter the oviduct after ovulation?
A
Follicle contraction propels them into the oviduct.
B
The ovaries are contained within the oviducts.
C
Muscular projections of the uterine wall grasp the egg cell and force it into the tube.
D
The egg cell actively swims to the tube, using its flagellum.
E
Currents created by cilia bring fluid inside, carrying the egg cell along.
Verified step by step guidance1
Understand the process of ovulation: Ovulation is the release of an egg cell from the ovary. This typically occurs midway through the menstrual cycle.
Identify the role of cilia: Cilia are tiny hair-like structures that line the oviduct (also known as the fallopian tube). They play a crucial role in moving the egg cell from the ovary into the oviduct.
Explain the mechanism of ciliary movement: The cilia create currents in the fluid surrounding the egg cell. These currents help transport the egg cell from the ovary into the oviduct.
Clarify why other options are incorrect: The egg cell does not swim using a flagellum, as it does not have one. The ovaries are not contained within the oviducts, and muscular projections of the uterine wall do not grasp the egg cell.
Summarize the correct process: After ovulation, the egg cell is carried into the oviduct by the fluid currents created by the cilia lining the oviduct.
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