Q1.
the leaves of most plants have stomata
(a)
(i) name the cells which control the size of the stomata.
(ii)
give one function of stomata.

Parasitism could be considered a form of which of these types of relationships? -mutualism -commensalism -predator-prey -mimicry

Does masterbation affect height growth or loss of growth hormone?

1) what three conditions must be present for minerals to form through natural processes? 2) why are minerals considered inorganic substances? 3) how do oxides differ from other minerals that contain oxygen atoms? 4) how is a sulfide different from a sulfate? what makes native elements unique?