Prenatal development

High school (ages 12+)
Human Body

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/prenatal-development

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the scientific name?Homo sapiens
2. What is the primary germ layers?Ectoderm, Mesoderm, Endoderm
3. What happens when a fertilized egg starts to grow?It divides quickly to become a blastocyst, a small hollow ball of cells that attaches to the uterine wall.
4. Why do the three germ layers matter?They are the building blocks that turn into all the baby's tissues and organs, like skin, muscles, and the nervous system.

Gastrulation: The process of forming the three primary germ layers from the blastocyst.
Organogenesis: The formation and development of organs from the germ layers.
Teratogen: An agent or factor that can cause malformations in a developing embryo or fetus.
Precocial: Born in a relatively mature state and able to move independently soon after birth.