Sexual Reproduction in Animals

Biology ⇒ Reproduction and Development

Sexual Reproduction in Animals starts at 7 and continues till grade 12. QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Sexual Reproduction in Animals. How you perform is determined by your score and the time you take. When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.

See sample questions for grade 9

Describe one way in which sexual reproduction contributes to evolution.

Describe the main difference between internal and external fertilization in animals.

Describe the role of the male gamete in sexual reproduction.

Describe the role of the placenta in mammals.

Explain the difference between oviparous and viviparous animals.

Explain why fertilization is necessary for sexual reproduction in animals.

Explain why genetic variation is higher in sexually reproducing animals compared to asexually reproducing animals.

Explain why parental care is more common in animals with internal fertilization.

Name two animals that reproduce by internal fertilization.

State one reason why external fertilization is common in aquatic animals.