Individuals who lack lactase are unable to breaķ down the sugar lactose during digestion and are said to be lactose intolerant. Which type of biomolecule is lactase?
A) protein B) lipid C) carbohydrate D) nucleic acid

the biomolecule is something called enzymes also known as protein.

Explanation:

An enzyme that is located in our small intestine called lactase breaks down the lactose into two parts. Only after the two sugars (glucose and galactose) have been separated can then they be absorbed by our bowel.

the answer to your question is sperm

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.