Answer:
Explanation:
The invasive species put back nitrogin that the soil was missing. The didn't need the extra nitrogen and put it back into the ground.
Water typically diffuses in and out of cells depending on the concentration of solutes (other gunk not water) in both the cell and the external environment. Osmosis (the diffusion of water), happens from where the solute concentration is lowest to where the solute concentration is highest (or more sensibly, water travels to dilute the solute; so imagine if a cell with a lot of gunk in it swims into pure water, water will start to move into the cell).
An oil spill from a tanker is an example of point-source pollution.
Genetic variation in a population allows for phenotypic variation, meaning that different traits exist in the same population. When the environment changes, the members of the population are tested by natural selection with regards to how well adapted their specific traits are to the new environment. If the traits they have do not suit their environment, this results in reduced survival and fitness, leading to less of that trait in the population. However, if the traits they have are adapted to the environment, they become naturally selected for with better survivability and fitness (leading to a higher frequency of that trait in the population). Thus, evolution has occurred.
<span>A monomer is a molecule that bonds with other identical molecules to form polymers. In this case, the correct answer is glucose, but galactose and fructose also belong in the monomer group, just aren't mentioned in the question. Sucrose is a somewhat archaic term for sugars in general, any simple sugar like the one we eat on a regular basis. </span>
