Chapter 11.3 Reproduction and Development

What happens when one of the sperm enters the egg?

• adulthood

• puberty

• fertilization

• none of the above

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What is a zygote?

• a hormone.

• a human stage of development.

• fertilized egg or ova.

• none of the above.

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NGSS.HS-LS3-1

How long does the menstrual cycle take to complete?

• 13 days.

• 28 days.

• 19 days.

• 30 days

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It takes about 38 weeks for a fertilized egg to fully develop.

• TRUE

• FALSE

Which body system produces hormones that help humans reproduce?

• Endocrine system

• Respiratory system

• Circulatory system

• Integumentary system

___________ are human reproductive cells.

• hormones

• calories

• gametes

• none of the above

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NGSS.HS-LS3-1

_________ are male gametes.

• sperm

• ova

• zygote

• calories

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__________ are female gametes.

• sperm

• ova

• zygote

• calories

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__________ helps sperm change from round cells to long, slender cells that can swim.

• estrogen

• testosterone

• progesterone

• none of the above

___________ controls egg maturation and also the release and thickening of the lining of the uterus in a process called the menstrual cycle.

• Endocrine system

• Respiratory system

• Circulatory system

• Integumentary system

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NGSS.HS-LS1-3