In a menstrual cycle, luteal phase follows menstrual phase.

Insects use pheromones to communicate.

Butterflies undergo external fertilization.

Self-pollination can occur in a plant whose flowers have the male and female reproductive parts.

Male mosquitoes can transmit diseases to humans.

Which serves as a passageway of the sperm cells after they are released from the testes?

The fertilized egg or zygote is implanted in the ______.

When one egg cell matures, it is released from the ovary and travels 3 to four days in the fallopian tube. This explains the __________.

Sperm cell is to testes as ovum is to _____.

The following undergo external fertilization, EXCEPT.

After mating, the female __________ lays its eggs in the water to be fertilized.

Which of the following carries the male gametes in flowering plants?

In plants, where does fertilization take place?

Which of the following does not belong to the group?