Organisms with a reproductive pattern that produces shelled amniotic eggs generally
A) end up having a higher embryo mortality rate than do organisms with unprotected embryos.
B) invest most of their reproductive energy in the embryonic and early postnatal development of their offspring.
C) invest more energy in parenting than do placental animals.
D) produce more gametes than do those animals with external fertilization and development.
E) lower their embryo mortality rate to less than one in a thousand.
Comparison of the steps of two viral reproductive cycles.
Some organisms used as models in genetic research
Male reproductive anatomy model
The development of the internal ducts of the male and female reproductive systems from the Wolffian ...
Strings of frog eggs
Breakfast eggs with avocado