The last one , sorry if i’m wrong
Answer:
Lactose intolerance is when your body can't break down or digest lactose. Lactose is a sugar found in milk and milk products. Lactose intolerance happens when your small intestine does not make enough of a digestive enzyme called lactase. Lactase breaks down the lactose in food so your body can absorb it.
Explanation:
The answer is C because primary succession starts from scratch (without soil)
I think it would be organ system for your awnser
A new cycle starts on the first day of her period, for 3-8 days. 14 days after the first day of the recent period, ovulation happens, & the lining builds up.
So basically, ovulation.
Hope that makes sense & helps. (:
