Ch-6 Biology

Question 1

What is reproduction?

Answer 1

Reproduction is the biological process by which new individual organisms are produced.

Question 2

What are the two main types of reproduction?

Answer 2

The two main types of reproduction are sexual reproduction and asexual reproduction.

Question 3

True or False: Asexual reproduction involves the fusion of gametes.

Answer 3

False.

Question 4

Fill in the blank: In sexual reproduction, two parents contribute ______.

Answer 4

gametes.

Question 5

What is a gamete?

Answer 5

A gamete is a reproductive cell that carries half the genetic information of an organism.

Question 6

What is fertilization?

Answer 6

Fertilization is the process where a male gamete (sperm) and a female gamete (egg) fuse to form a zygote.

Question 7

List one advantage of sexual reproduction.

Answer 7

One advantage of sexual reproduction is increased genetic diversity.

Question 8

List one disadvantage of asexual reproduction.

Answer 8

One disadvantage of asexual reproduction is reduced genetic variation.

Question 9

What is budding?

Answer 9

Budding is a form of asexual reproduction where a new organism develops from an outgrowth or bud on the parent.

Question 10

True or False: All animals reproduce sexually.

Answer 10

False.

Question 11

What is regeneration?

Answer 11

Regeneration is the process by which some organisms can regrow lost body parts.

Question 12

What type of reproduction do hydra use?

Answer 12

Hydra primarily reproduce asexually through budding.

Question 13

What is internal fertilization?

Answer 13

Internal fertilization is the process where fertilization occurs inside the female’s body.

Question 14

What is external fertilization?

Answer 14

External fertilization is the process where fertilization occurs outside the female’s body, typically in water.

Question 15

Name one animal that uses external fertilization.

Answer 15

Fish.

Question 16

Name one animal that uses internal fertilization.

Answer 16

Humans.

Question 17

What is a zygote?

Answer 17

A zygote is the fertilized egg that results from the union of sperm and egg.

Question 18

What is the role of the placenta in mammals?

Answer 18

The placenta provides nutrients and oxygen to the developing fetus and removes waste products.

Question 19

What is oviparous?

Answer 19

Oviparous animals are those that lay eggs, with embryos developing outside the mother’s body.

Question 20

What is viviparous?

Answer 20

Viviparous animals give birth to live young, with embryos developing inside the mother’s body.

Question 21

What is asexual reproduction?

Answer 21

Asexual reproduction is a type of reproduction that does not involve the fusion of gametes and results in offspring identical to the parent.

Question 22

True or False: Parthenogenesis is a form of sexual reproduction.

Answer 22

False.

Question 23

What is parthenogenesis?

Answer 23

Parthenogenesis is a form of asexual reproduction where an egg develops into an individual without fertilization.

Question 24

What is the difference between sexual and asexual reproduction?

Answer 24

Sexual reproduction involves two parents and the fusion of gametes, while asexual reproduction involves one parent and does not involve gametes.

Question 25

Fill in the blank: The process of ______ involves the development of an organism from an egg.

Answer 25

embryogenesis.

Question 26

What is metamorphosis?

Answer 26

Metamorphosis is a biological process by which an organism undergoes a significant change in form during its life cycle.

Question 27

Give an example of an animal that undergoes metamorphosis.

Answer 27

Frogs.

Question 28

What is a life cycle?

Answer 28

A life cycle is the series of stages an organism goes through from birth to reproduction and eventually death.

Question 29

True or False: All organisms have the same type of life cycle.

Answer 29

False.

Question 30

What is a larva?

Answer 30

A larva is an immature form of an animal that undergoes metamorphosis, often looking very different from the adult.

Question 31

What is spawning?

Answer 31

Spawning is the process by which aquatic animals release eggs and sperm into the water for external fertilization.

Question 32

What is ovoviviparous?

Answer 32

Ovoviviparous animals produce eggs that hatch inside the female's body, resulting in live young.

Question 33

Give an example of an ovoviviparous animal.

Answer 33

Some species of sharks.

Question 34

What is the primary benefit of sexual reproduction?

Answer 34

The primary benefit is genetic diversity, which enhances adaptability.

Question 35

What is cloning?

Answer 35

Cloning is a method of asexual reproduction that produces a genetically identical copy of an organism.

Question 36

True or False: Cloning occurs naturally in some organisms.

Answer 36

True.

Question 37

What is the significance of reproduction in ecosystems?

Answer 37

Reproduction ensures the continuation of species and contributes to biodiversity.

Question 38

What is sexual dimorphism?

Answer 38

Sexual dimorphism refers to the differences in appearance between male and female members of the same species.

Question 39

What is the role of courtship behavior in reproduction?

Answer 39

Courtship behavior helps attract mates and increase the likelihood of successful reproduction.