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.
A plot of trophic diversity across the major groups of organisms shows highest trophic diversity amo
Classification of life histories based on juvenile survival, fecundity, and age at reproductive matu
Independent assortment produces 50 percent recombinants
Mixing bacterial genotypes produces rare recombinants
REPRODUCTIVE SYSTEM
Despite the traditional focus on males, females actively choose mates and are the driving force in t