Spores from different species of molds are released into the air and can cause respiratory allergies in sensitive individuals.
The diagram shows how the concentration of airborne spores varies for each mold species over a 12-month period, from January (Jan) to December (Dec).
In which month is there no risk of an allergy from these mold spores?
Explain which mold species is likely to have the greatest effect in causing allergic reactions.
To monitor spore levels, automatic spore traps are used where spores stick to a rotating grease-covered drum. Suggest two abiotic factors that could affect the number of spore grains collected by these traps.
Describe the events that take place from when a pollen grain lands on the stigma of a flower to when a seed is successfully formed.
