Which type of organism converts wastes and dead materials into nutrients that can be used by plants

Decomposers feed on dead and decaying organisms. They recycle important nutrients in these organisms back to the soil which can be absorbed back into plants through root systems. Fungi and annelids are some of many decomposers.

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.

voluntary muscles are controlled by the cerebellum.