The economist thomas malthus suggested that
a people die faster than babies are born
b there were soon be insufficient food for the growing human population
c in the 1700s, england needed more housing
d the majority of a species offspring die

B there were soon be insufficient food for the growing human populatio

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.

frogs. the lower the ph the higher the acid content. frogs have the highest tolerance in this scenario.