Chapter 28 Part 2

In females, the engorgement of erectile tissues along with secretions from the cervical mucous glands and greater vestibular glands are

• sympathetically mediated

• para-sympathetically mediated

A zygote is

• a haploid gamete

• what embeds into the endometrial lining

• the fusion of two haploid gametes, each containing 23 chromosomes

• the final stage of fetal development

The acrosome

• is necessary for sperm motility

• allows sperm to gain entrance into the egg

• provides the energy necessary for the sperm's survival

• contains the sperm's chromosomes

The mother's blood mixes with the blood of the developing fetus

• True

• False

Identical twins are referred to as

• monozygotic

• dizygotic

• trizygotic

• siamese

The most common type of twins are

• monozygotic

• dizygotic

• trizygotic

• siamese