ch 42- animal reproduction
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4 Terms
What is asexual reproduction?
asexual
one individual
mitotic cell division
ow genetic diversity,
fast and efficient
examples:
Budding- clone growing on adult -> clone comes off
e.g. sea anemone
fragmentation- body part injured -> regenerates entire individual
e.g. flatworm, sea stars and sea anemones
parthenogenesis- individual develops from an unfertilized egg, 100% genetically the same as the female,
e.g. whiptail, lizards, rotifers, insects
What is sexual reproduction?
sexual
male and female
fertilization of gametes,
meiosis-> make gametes
huge genetic diversity.
Options:
separate sexes,
hermaphrodites- male and female sex organs in one individual.
2 types of fertilization:
external- release sperm in the environment over the eggs outside of the body
e.g. spawning,
internal place the sperm into the reproductive organ
How do animals synchronize?
physiology, behavior, odor/scents
What is a spermatophore
sperm packet
Note 
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