Reproductive Systems in Animals
Biology ⇒ Reproduction and Development
Reproductive Systems in Animals starts at 8 and continues till grade 12.
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Describe one way in which the reproductive system of birds is adapted for laying eggs.
Describe the main difference between internal and external fertilization in animals.
Describe the role of hormones in the reproductive systems of animals.
Describe the role of the oviduct (fallopian tube) in the female reproductive system of mammals.
Explain the difference between oviparous and viviparous animals.
Explain why external fertilization is more common in aquatic animals than in terrestrial animals.
Explain why some animals lay many eggs at once, while others produce only a few offspring at a time.
Name one advantage of internal fertilization over external fertilization.
Which hormone is mainly responsible for the development of secondary sexual characteristics in male animals?
(1) Estrogen
(2) Testosterone
(3) Progesterone
(4) Insulin
Which of the following animals is an example of a viviparous animal?
(1) Fish
(2) Cow
(3) Turtle
(4) Frog
Which of the following animals is oviparous?
(1) Whale
(2) Kangaroo
(3) Snake
(4) Bat
Which of the following animals uses external fertilization?
(1) Dog
(2) Frog
(3) Cow
(4) Cat
Animals that have both male and female reproductive organs in the same individual are called __________.
Fill in the blank: The __________ is the passage through which the baby is born in mammals.
Fill in the blank: The __________ is the site of sperm production in male animals.
Fill in the blank: The process of producing eggs is called __________.
True or False: All birds are oviparous animals.
True or False: Fertilization in mammals usually occurs inside the female body.
True or False: In most mammals, the embryo develops inside the mother's body.
True or False: The placenta is an organ that forms during pregnancy in most mammals to provide nutrients and oxygen to the developing embryo.
