For starters, atoms are the basic building blocks of matter- they make up elements, molecules and compounds. Elements most often combine with other elements as compounds. Whilst molecules are particles found in both elements and compounds. I hope that wasn't too confusing, but bottom line is that they are all linked together in this way! Helpful? :)
A monomer made up of a nitrogenous base, a five-carbon sugar, and a phosphate group bonded together.
4 is true with question you asked
The dependant variable would be the salmon, because they depend on the water and pollution levels to give a result.
Primary succession: <u>is a process by which a community arises in a virtually lifeless area with no soil. </u>
Secondary succession:<u> follows a disturbance that destroys a community without destroying the soil.</u>
