Unit 2 Test-Ecology

Front

What level of ecology involves studying how a group of herbivores interacts with a group of omnivores and all of their abiotic surroundings?

Back

Ecosystem

Front

What is described by the following: Ruby-throated hummingbirds live in woodland areas, frequent gardens, hover to feed on flowers, nectar, and sap, and pollinate many plants. They are omnivores, sometimes feeding on insects and spiders.

Back

Niche of a heterotroph

Front

If there are 100 KJ of energy available at the secondary consumer level, how many KJ of energy are available at the producer level?

Back

10,000 KJ

Front

Vines grow on a tree. The vines get light but the tree is not affected. What kind of relationship is this?

Back

Commensalism

Front

The monkey would be a: decomposer, producer, primary consumer, secondary consumer

Back

secondary consumer

Front

Why are biologists removing pythons from the Everglades?

Back

The pythons could prey on native organisms and cause native populations to decline.

Front

Which of the following statements account for the change in population seen between years 7 and 8?

Back

The death rate of the pigeons exceeded the birth rate.

Front

A new species of snake was introduced to a tropical region. Scientists then noticed a steady decline in the presence of field mice and an increase in the number of snakes. What is the most likely explanation for the change in population size of each animal?

Back

The mice became prey to the introduced snakes, allowing the snake population to increase but decreasing the mice population.

Front

What percentage of energy available at one trophic level is transferred to organisms at the next level?

Back

about 10 percent

Front

What is the carrying capacity of the graph?

Back

around 500