Lichen is an organism that is half bacteria, half fungus. Lichen release oxalic acid which breaks down the molecular structure of tough surfaces, like granite. This is an example of what type of weathering?
O Oxidation
Abrasion
Biological chemical
O Biological mechanical

the oceanic zone is typically defined as the area of the ocean lying beyond the continental shelf, but operationally is often referred to as beginning where the water depths drop to below 100 meters (328 feet), seaward from the coast to the open ocean.

explanation:

answer; /// i believe that the correct answer is ( monophasic ); ethinyl estradiol- ethynodiol diacetate is a monophasic oral contraceptive agent; ///

a- multicellular

b-eukaryotic

c-no cell wall

d-heterotrophic

e-autotrophic

instead of copying and pasting things off of tests or work done on computer which im sure you did, try and read over the question carefully