16 reproduction

Question 1

What is asexual reproduction?

Answer 1

Only one parent
Offspring identical to parent-inherit same genetic info
Little variation among offspring (any due to env factors)
eg:bacteria, fungi and plants

Question 2

Advantages and disadvantages of asexual reproduction

Answer 2

Adv
Fast, organisms reproduce rapidly & colonize areas
Only one parent needed
Disadv
Does not result in variation (no natural selection)
Grow close together so they fight for nutrients

Question 3

What is sexual reproduction?

Answer 3

Two parents
Sex organs make gametes
Male: ani) sperm cells. plants) nuclei inside pollen grains
Female: ani) egg cell. Plants) inside ovules
Gametes fuse during fertilization
Zygote divides to form embryo which may grow into a new plant
Half genes from each parent = variation

Question 4

Advantages and disadvantages of sexual reproduction?

Answer 4

Adv
Variation in offspring, gives place to natural selection 
Seeds more dispersed, less competition 
Disadvantages
Two to do the job
Fertilization may not occur
Slower than ace