Vocabulary

somatic cell
sex cell
gamete
gonads, male and female
zygote
egg cell
sperm cell
fertilization, internal and external

1. In what ways do creatures that reproduce by internal fertilization different from those who practice external fertilization? Be sure to include number of eggs, location of fertilization, where the offspring is located and degree of parental care.

2. Which animals undergo internal fertilization and which fertilize externally?