Grade 11 Embryology Worksheet
Anatomy and physiology worksheet covering key concepts in human embryology for Grade 11 science students.
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Grade 11 Embryology Worksheet
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Read each question carefully and answer to the best of your ability. Refer to your notes and textbook if needed.
1. Which of the following terms describes the fusion of male and female gametes?
Gastrulation
Fertilization
Organogenesis
Cleavage
2. Which germ layer develops into the nervous system and epidermis?
Mesoderm
Endoderm
Ectoderm
Notochord
3. The process of rapid cell division without significant growth, occurring after fertilization, is called .
4. The inner cell mass of the blastocyst eventually develops into the .
5. The formation of the three primary germ layers (ectoderm, mesoderm, and endoderm) is known as .
6. Differentiate between a zygote, a morula, and a blastocyst.
7. Briefly explain the significance of the placenta in human embryonic development.
Match each term on the left with its correct description on the right.
8. Neurulation
a. Formation of organs
9. Organogenesis
b. Formation of the neural tube
10. Implantation
c. Attachment of blastocyst to uterine wall
11. The embryonic period lasts from fertilization until the end of the 8th week of development.
True
False
12. All three germ layers contribute to the formation of the heart.
True
False
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