4.2 Human Reproduction and 4.3 Biotechnology

Sexual reproduction is vital to the propagation of the human race.

Which of the following sequences represents the correct order of events in the formation of a human fetus?

• Zygote → Blastocyst → Embryo → Fertilization

• Fertilization → Zygote → Blastocyst → Embryo

• Blastocyst → Embryo → Differentiation → Zygote

• Fertilization → Growth → Differentiation → Zygote

The diagram below shows a fetus implanted in a female uterus. Fertilization of the egg most likely occurred in which of the following structures?

• A

• F

• C

• D

The drinking of alcoholic beverages by a pregnant woman is harmful to the development of her fetus. This is most damaging early in the first trimesters of pregnancy because during this time

• the lungs of the fetus become functional.

• alcohol can easily enter the mouth of the fetus.

• many of the essential organs of the fetus are forming.

• the fetus cannot excrete wastes.

Tags

NGSS.HS-LS1-4

Which of the following describes fertilization?

• Cell differentiation to form a blastula

• Formation of germ layers in a deuterostome

• A sperm joining an egg to form a zygote

• Sperm and egg production

Abnormalities present in the cells that line the uterus may prevent the production of offspring by directly interfering with which process?

• The development of the embryo.

• The differentiation of gametes into zygotes.

• The secretion of estrogen by the ovary.

• The production and release of egg cells.

Sperm are created through meiosis in an area of the testes called the seminiferous tubules.

Through which structure do the sperm travel NEXT to exit the testes?

• vas deferens

• urethra

• scrotum

• epididymis

What is the human embryo called after the 8-9 week of development?

• a zygote

• an infant

• a fetus

• a morula

A fertilized egg undergoes several stages before it is successfully implanted. The diagram below shows these stages as the fertilized egg travels through the female reproductive system.

In which of the following structures of the female human reproductive system is the blastocyst implanted during normal human development?

• ovary

• uterus

• vagina

• amniotic sac

The diagram shows the male reproductive system:
Which structure is represented by the letter W?

• scrotum

• scrotum

• prostate gland

• epididymis

Which are most closely related to biotechnology?

• medicine and agriculture

• construction and engineering

• water treatment and electricity generation

• communication and information technology