IB Biology SL 3.1.10 Promoting cross-pollination Question Bank

a. male and female reproductive organs/gametes can have different maturation times;

b. separate male and female flowers/plants

OR male and female reproductive organs within one flower far apart/OWTTE;

c. pollen carried to other flowers/plants by animals/pollinators/wind;

d. example of flower/pollen adaptation to animal pollination

OR

example of flower/pollen adaptation to wind pollination;

e. self-incompatibility mechanisms/OWTTE;

a. Accept a specific example of male/female reproductive organs, such as anthers, stigma or ovule.

c. There must be a reference to pollen being carried to other flowers/plants.

c. Accept specific examples of pollinators, but do not accept just the word "species" for animals.

d. Examples include nectar, brightly coloured flowers or anthers hanging out.

e. Accept examples.

2

Marking guidance:

max