Oviparous (egg-laying) animals have internal fertilisation (sperm cells encounter eggs within the female's body). Yolk and/or albumen is (are) provided to the embryo, and a shell is then deposited around the embryo and its food source. Eggs are subsequently deposited in an environment that promotes their further development, or are incubated by one or both parents.
-The internal fertilisation that occurs prior to shell deposition has what type of analogue in angiosperms?

Question

Quizplus · Accepted Answer

The growth of the pollen tube and delivery of sperm nuclei is the angiosperm analogue to internal fertilisation in oviparous animals. The sperm cell fuses with the egg cell inside the ovule, which eventually develops into a seed. The endosperm proliferation occurs after fertilisation and provides nutrients to the developing embryo. The seed coat hardens as the seed matures, and the fusion of carpels into a fruit occurs after pollination and fertilisation.

Oviparous (Egg-Laying) Animals Have Internal Fertilisation (Sperm Cells Encounter Eggs