Embryo Definitions

1. What is the definition of embryology?

A) The study of plant development

B) The study of embryo formation and development

C) The study of reproductive methods

D) The study of animal behavior

2. What is reproduction in biology?

A) The process of creating new offspring

B) The study of genetic mutations

C) The process of plant growth

D) The study of cellular division

3. What does gametogenesis refer to?

A) The development of an embryo

B) The process of fertilization

C) The formation and maturation of sex cells

D) The development of a fetus

4. What is live pregnancy in mammals?

A) Reproduction involving egg development outside the mother's body

B) Reproduction involving egg development entirely in the mother's uterus

C) Reproduction without any egg development

D) Reproduction involving egg development in the father's body

5. How does fertilization occur?

A) Through artificial insemination only

B) Through the act of copulation or artificial insemination

C) Through asexual reproduction

D) Through the act of copulation only

6. What is the period of onthogenesis?

A) The period from birth until death

B) The period from fertilization until death

C) The period from fertilization until birth

D) The period from conception until birth

7. What is the gestation period for a conceived organism, and how is it calculated?

A) 40 weeks from fertilization until birth

B) 280 days from the date of last menstrual period until birth

D) 266 days from the date of last menstrual period until birth

C) 38 weeks from fertilization until birth

8. During which stage of the prenatal period does the embryonic phase occur? (STUPID QUESTION!)

Pre-embryonic

Embryonic

Fetal

Postnatal

9. How long does the embryonic stage last?

A) 2 weeks

B) 3 weeks to 8 weeks

C) 9 weeks to birth

D) 40 weeks

10. What is the main focus of embryology as a branch of biology?

A) The study of animal behavior

B) The formation and development of an embryo

C) The study of reproductive methods

D) The development of plant embryos

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