Ecosystem Relationships COX

An elk lives in a large forest. Which of the following are abiotic factors that an elk would rely on for its growth and survival? Choose ALL THAT APPLY

• Water to drink

• a comfortable temperature range

• wolves as predators

• air to breathe

• other elk as potential mates

The type and amounts of plants that grow in an ecosystem heavily depend on the average precipitation (RAIN) levels and length of the growing season. How would these factors be classified?

• Average precipitation (Rain) is a biotic factor;growing season length is an abotic factor

• Average precipitation (Rain) is an abiotic factor;growing season length is a botic factor

• Average precipitation (Rain) and growing season length are both considered biotic factors

• Both average precipitation and growing season length are considered abiotic factors.

Temperature is a(n) __________________________ component of an ecosystem.

• unimportant

• abiotic

• biotic

• living

Rain is a(n) _________ component of an ecosystem.

• unimportant

• abiotic

• biotic

• living

Which level of the table is an example of an ecosystem?

• level 1

• level 2

• level 3

• level 4

Which of the following is the BEST label or title for the oval?

• parts of a food web?

• Levels of a food chain

• Parts of an ecosystem

• Levels of an Energy Pyramid

• level 1

• level 2

• level 3

• level 4

Which of these is necessary for life on Earth?

• water

• trees

• wind

• soil

A population of snails and a population of sea urchins live in the same ecosystem. Both species rely on kelp as a food source.

One year, the population of sea urchins doubles. However, the amount of kelp in the ecosystem has not changed. How will the population of snails likely be affected?

• The population of snails will likely move to an new ecosystem

• The population of snails will likely decrease

• The population of snails will likely stay the same

• The population of snails will likely decrease

• Food availability is high, number of competitors is high.

• Food availability is low, the number of competitors is high

• Food availability is high, the number of competitors is low

• Food availability is low, the number of competitors is low