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10 cards from this deck
Adaptations improving fertilisation & offspring survival
Sperm & egg meet outside female's body, needs water
Sperm deposited inside female's body to meet egg
Animals lay eggs; embryo develops outside mother's body
Eggs stay inside mother until hatching, nutrients from yolk
Embryos develop in uterus, nourished via placenta
Fluid-filled sac that cushions & protects embryo
Collects waste & facilitates gas exchange
Well-developed, independent young; eyes open at birth/hatching
Underdeveloped young needing extensive parental care
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