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The first step of the ____________ cycle involves fixing a compound from the atmosphere during photosynthesis.

______________ is a diagram that follows multiple possible routes of energy through the ecosystem.

Biomass equations are used to determine the amount of energy that is transferred through trophic levels.  About what percent of energy produced by producers is transferred to herbivores?

The Ozone Layer in the atmosphere blocks a large amount of ultra violet light.  If holes appeared in the Ozone Layer what would most likely happen?

Bonus Questions:  Select the point value you would like.

Which factor does not cause increased biodiversity at the equator?

Organisms that consume herbivores for their energy are considered ______________.

_____________ is a group of multiple different species which interact with each other in a specific location.

As a population grows closer to carrying capacity, you would expect the growth rate to decrease and enter a ______________ growth phase.

Why might Angiosperms have evolved after animals colonized land?  (Should only take a couple sentences to answer. /  4 points)