Human growth and development

The joining of a male sperm cell and a female egg cell to form a human life.

• Reproduction
• Menstruation
• Ovulation
• Fertilization

The process by which human organisms produce others of their kind.

• Reproduction
• Fertilization
• Ovulation
• Menstruation

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

True or False: A zygote has 23 chromosomes in total.

• True

• False

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What does a fertilized egg attach to after it is fertilized?

• vagina

• cervix

• uterus

• fallopian tubes

True or False: The egg is the female reproductive cell.

• True

• False

The fallopian tubes are a part of the ______________ reproductive system.

• male

• female

Pregnancy occurs because of the fertilization of the _______.

• egg by sperm

• sperm by the egg

While other cells have 23 pairs or 46 _________, the egg cell and sperm cell have only 23.

• cells

• genes

• chromosomes

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

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