Insects are the most diverse group of organisms, in terms of numbers of species, dominating terrestrial habitats. a. True
b. False

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.

1. is geographic distribution

2 is increasing complexity

3 is transitional forms