Answer:
introduces substances into an environment
Explanation:
eutrophication is just a bunch of algae in a pond or source of water. pollution is bad materials in the air. smoke and algae are substances in an environment.
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Answer:
New information about the genetics of species is being discovered.
Answer:
Mutualism
Explanation:
This type of relationship is where all organisms involved benefit from the interaction. The relationship can be obligatory (where the organisms cannot live independent of each other) or can be facultative (where they can also live independent of each other). In lichen, this relationship is facultative.
Answer:
Nucleic acids are polynucleotides—that is, long chainlike molecules composed of a series of nearly identical building blocks called nucleotides. Each nucleotide consists of a nitrogen-containing aromatic base attached to a pentose (five-carbon) sugar, which is in turn attached to a phosphate group.
Explanation:
