Sexual Vs Asexual Reproduction

Question 1

Define parthenogenesis

Answer 1

Virgin birth

Question 2

Define asexual reproduction

Answer 2

Reproduction not involving the union of male and female gametes

Question 3

Sexual reproduction…

Answer 3

…involves in the fusion of male and female sex cells.

Question 4

Advantages of sexual reproduction:

Answer 4

• genetic variety

- more parental care (generally)

Question 5

Disadvantages of sexual reproduction:

Answer 5

• costly in terms of energy (e.g. competition)
• vulnerable to predators
• disease transmission
• slow (less population growth)
• few offspring

Question 6

Advantages of asexual reproduction:

Answer 6

• fast/many
• low energy expenditure
• no need to find a mate
• no STDs

Question 7

Disadvantages of asexual reproduction:

Answer 7

• produces clones
• can’t escape genetic problems
• less parental care

Question 8

Which type of reproduction is better in a STABLE environment?

Answer 8

Asexual - continue a ‘good thing’, not needing to adapt

Question 9

Which type of reproduction is better in a CHANGING environment?

Answer 9

Sexual - for genetic variation to adapt

Question 10

Asexual reproduction is all about….

Answer 10

…exploiting a good niche

Question 11

What form of asexual reproduction to bacteria use?

Answer 11

Binary fission

Question 12

Give 2 examples of species that reproduce by budding

Answer 12

Jellyfish and hydra

Question 13

Name to animals that reproduce by fragmentation

Answer 13

Starfish and worms

Question 14

What type of sexual reproduction do FUNGI and FERNS use?

Answer 14

Spores