Embryo

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/embryo

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?Embryo
2. What is the primary germ layers?Ectoderm, Mesoderm, Endoderm
3. What happens when a sperm and egg meet?They join to make a single cell called a zygote. This cell has all the DNA needed to grow into a new person.
4. How does a tiny cell become a blastocyst?The zygote divides many times, forming a ball of cells called a morula. A fluid pocket then appears, turning it into a blastocyst with an inner cell mass and an outer layer that helps build the placenta.

Pluripotency: The ability of a stem cell to differentiate into any cell type of the three germ layers.
Teratogen: An agent or factor that can cause a birth defect or developmental abnormality.
Morphogenesis: The biological process that causes an organism to develop its shape and structure through cell growth and differentiation.