How does the procedure for using the microscope differ when using low power versus medium or high power?

Which ideas did your answer contain? check all that apply. no food for organisms no oxygen in the atmosphere no trees or flowering plants no products based on trees or plants (building materials, medicines, fuels, fibers) no fossil fuels

How does a gymnosperm prevent itself from pollinating the same tree

When lactate builds up in a runners muscles it causes a burning sensation what causes this to occur