The illustration shows a representative food web found in the marine environment. consider the phytoplankton at the base of the food web. how does the energy that it needs to survive originally enter the food web?

hope this !

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.