Cyanobacteria produce from nitrogen gas as part of the nitrogen cycle. Only about percent of Earth's water is available to be consumed by humans or used for agriculture.
Animals can't consume nitrates directly. They must obtain nitrogen by plants or other herbivore animals.
from forest fires and volcanoes, as well as the decay of dead plants and animals, causes a type of pollution from carbon oxides.
One of the primary reasons that freshwater is unevenly distributed around the world is due to variation in amounts of .

Seen in some gram-positive bacilli, occurs when only the inner portion of a cell wall is deposited across the dividing cell. this new cross wall puts tension on the outer layer of the old cell wall. eventually, the outer wall breaks at its weakest point with a snapping movement that tears it most of the way around. the daughter cells can then remain hanging together almost side by side being held by a small remnant of the original outer wall. choose from the following statements the ones that correctly discuss reproduction using binary fission in a bacterial cell. select all that apply. view available hint(s) select all that apply. due to the stretching of the cytoplasmic membrane, both cells will contain a complete genome. each daughter cell will contain an equal number of organelles. the daughter cell will be a permanently smaller copy of the mother cell but will contain a complete genome. each daughter cell is an exact copy of the other, both genetically and morphologically

To maintain asepsis when administering an injection, all parts of the syringe can be handled except the:

Give three examples of plant activities that are affected by circadian rhythms and natural fluctuations in the length of daylight?