There are three sources of genetic variation: mutation, gene flow, and sexual reproduction. A mutation is simply a change in the DNA.
Answer:
algae. I just looked it up. algae are autotrophs meaning they make their own food. I hope this helps!
The algae increase the autotrophy by offering photosynthesis to the fungi in the lichen organism.
A lichen is an organism consisting of a symbiotic association between a fungus (the mycobiont) and algae. The mushroom brings water and mineral salts. The alga produces, by photosynthesis, various organic compounds of which it gives a part to the mushroom.
Cohesion hold H Bonds together to create surface tension on water. And since water is attracted to other molecules it then sticks to other molecules.
hope i helped
In protains, DNA, RNA, and chlorophyll.