Everything an organism does and when it does it, describes an organism's

Which of the following is an interaction in which one organism benefits and the other is harmed? (+/-)

Which of the following is an interaction in which both organisms are harmed? (-/-)

Which of the following types of organisms perform photosynthesis?

Which of the following organisms is a decomposer?

A caterpillar eats some grass. A bird eats the caterpillar, a fox eats the bird. Which food chain represents this series of feeding relationships?

An interaction in which an individual of one species kills and consumes an individual of another is called

A beehive depends on pollen from flowers to survive. Flowers depend on bees to pollinate them. Humans tend bee hives, offering the bees a place to live in exchange for some of their honey. The relationship among these three sets of organisms is

The ultimate source of energy in an ecosystem in which deer eat grass and coyotes eat deer is

A deer browsing on a shrub is an example of

The first level of all food pyramids

When energy is transferred between trophic levels, the amount of available energy lost is about

Humans are generally

Any being that uses the sun's energy to create sugars is a

What is true about energy transfer in communities?

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