Fresh water is any body of water with a low salt concentration. Organisms in fresh water various challenges which includes; Osmotic concentration such that fresh water is permanently dilute and most cells cannot function at this concentration of ions. Varying temperatures, variation in oxygen levels and reproduction and life cycle due to permanence of habitat and physiological difficulty of regulating osmotic concentration in larvae and juveniles.
Answer:
Germs
Explanation:
Germs is what forms all of the following, im not sure but I think germs would go in the blank
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<u>6</u><u>2</u><u>.</u><u> </u><u>B</u><u>.</u><u> </u><u>2</u><u> </u><u>AND</u><u> </u><u>4</u></h2>
<u>HOP</u><u>E</u><u> IT</u><u> </u><u>HELPS</u><u> </u><u>YOU</u>
Answer:
The evidence suggests that these chloroplast organelles were also once free-living bacteria.
Explanation:
The endosymbiotic event that generated mitochondria must have happened early in the history of eukaryotes, because all eukaryotes have them.
:)
