The dissolved sugars produced in the leaves of a maple tree move to the tree's roots through the

air, water, heat and noise pollution can all be caused by producing and using technology. consuming resources - non-renewable resources, including precious metals like gold, are used to make technology

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.

. ph changes the ability of them he enzyme to dissolve in water.

a = executive branch; b = judicial branch