Pest can cause what kind of contamination?

pest can cause both Biological contamination and Physical Contamination.

Explanation:

pests are animals or insects that cause damage to food, crops, the metabolic substances which are released by the pests cause contamination of food.

some of the common pests are rodents, insects, fungi, mites.

the menstrual cycle – higher tier. negative feedback mechanisms affect the production of hormones in the menstrual cycle. oestrogen also stimulates the release of lh (luteinising hormone) from the pituitary gland, which in turn controls the production of progesterone.