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Reproduction - Coggle Diagram
Reproduction
Types of reproduction
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Sexual reproduction 
Metamorphosis
Complete metamorphosis
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lifecycle of butterflies, ants, fleas, bees, beetles, moths, wasps
Incomplete metamorphosis
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lifecycle of grasshoppers, cicadas, cockroaches, lice
Fertilization
Acrosomal reaction
- contact between sperm and egg
- release enzymes from acrosome
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Cortical reaction
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Mature gametes
Egg
Sperm
Gametogenesis
Oogenesis
- Growth phase: primary oocytes
- Maturation phase (meiosis) : secondary oocyte and polar body; ovum and second polar body, if fertilization occurs ~> zygote
- Multiplication phase (mitosis) : oogonium and primary oocytes
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Spermatogenesis
- Growth phase: primary spermatocyte
- Maturation phase (meiosis) : secondary spermatocyte ~> spermatid
- Multiplication phase (mitosis) : spermatogonium
- Formation phase: sperm(spermatozoa)
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