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When fertilizers drain into aquatic ecosystems it can result in excess algae and bacterial growth.  The growth of these organisms results in hypoxia, which is the removal of ______________ from the water.

________________ are the physical and behavioral characteristics that allow for an organism to be more successful in their environment.

Vascular seed plants are the dominant plant group on the planet today.  What adaptation do they have that other groups do not, and is most likely the reason for their success?

The first step of the ____________ cycle involves bacteria that fix the gas from the atmosphere.

This important aspect of life history measures material and energetic contribution that an individual will make to its offspring.

________________ is the change in allele frequencies of a population over time.

Which is not a way humans have greatly increased our carrying capacity?

Which adaptation did not help chordates colonize land?

Fungal cells are similar to plant cells because they have _____________, which animals lack. 

What is the major difference between fungi and animals?