Mod 13

Question 1

Understand the different emphases of stage models and continuum models of development.

Answer 1

Moral development
Psychosocial development
Cognitive development

Question 2

How are the terms egg, sperm, gamete, and zygote related?

Answer 2

Gametes - egg and sperm

Zygote - fertilized egg

Question 3

What is fertilization implantation?

Answer 3

fertilized egg implants in uterine wall

Question 4

What is pre-embryo, embryo, fetus, and differentiation?

Answer 4

Pre-embryo - conceptus before implantation in the uterus
Embryo - the developing human organism from about 2 weeks after fertilization through the second month
Fetus - 9 weeks - embryo looks unmistakably human
Differentiation - embryonic cells specialize and diverse tissue structures arise

Question 5

What is a teratogen and what are some major examples?

Answer 5

agents, such as chemicals and viruses, that can reach the embryo or fetus during prenatal development and cause harm

Alcohol
Nicotine
Marijuana