Urgent ! a scientific hypothesis can become a theory if a)the hypothesis can be tested at least once b)the entire scientific community accepts it as truth without testing c)it is tested extensively and competing hypotheses are eliminated d)there are no other competing hypotheses

We want most cells to be even in and out which is called

Chlorophyll is found in plant leaves and absorbs light from the sun to enable plants to perform photosynthesis. magnesium is an important component of chlorophyll. the concentration of magnesium ions is higher in the root-hair cells of plants than in the soil. which mechanism of ion uptake would best enable a plant to produce a steady supply of chlorophyll? osmosis diffusion passive transport active transport

What causes the force that pushes magma from the magma chamber through the pipe and vent of a volcano?