Comparing Reproductive Strategies


Sea urchin





Mammal (species?)

# of eggs released at one time [S,M,L]







Internal or external fertilization







Internal or external development







Source of nutrition for developing embryo







Source of nutrition post partum







Type of protection/care provided to developing young







Type of protection/care provided to young, post partum







1) In organisms that have external fertilization, are the number of eggs produced large, medium or small? Why is this necessary?

2) As care and protection increases, how do the number of eggs released compare? Explain why.