
BIO 2 - ANIMAL REPRODUCTION
Quiz by John Sandrino
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Ensures the continuity of the species and keeps it from becoming extinct
Without the fusion of gametesÂ
Fusion of gametes
3 examples of Asexual ReproductionÂ
Example of Sexual Reproduction
When an organism has both male and female reproductive organs.
Common in invertebrates such as worms, slugs, or snails.
- takes place inside the female reproductive system (mating)
- zygote formed inside the female body
- Retained in the female's bodyÂ
- hatch within or immediately after release from the parent
union of egg and sperm (producing zygote)
The fertilized egg are laid outside, where they receive nourishment from the yolk
- the offspring are born directly
-Â receive nutrition from their mother (placenta)
- can be seen in mammals
Takes place outside the female reproductive system (spawning)
ex. frogs/toads, fishes, and bivalves
Development of a female (rarely male) gamete (sex cell) without fertilization
- Splits into parts of fragments
- the fragments will undergo regeneration
modified form of fragmentation and is a process of regrowth
- develops from an outgrowth from the parent bodyÂ
- detaches from the parent body once it matures