Intro to Ecology

Which of the following best describes an ecosystem?

• all the living organisms in an area and their physical surroundings
• a region with a distinct climate
• all the living organisms of the same species throughout the world
• all the living organisms in an area

A pod of dolphins hunting and feeding on a school of fish is an example of

• an ecosystem interaction.
• a population interaction.
• a community interaction.
• a biome interaction.

Tags

NGSS.MS-LS2-2

In the organization of living things, a ______________ would include the largest number of individuals.

• community
• population
• ecosystem
• species

All living things or organisms in an ecosystem are

• None

• biotic factors

• abiotic factors

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Is sunlight an abiotic or biotic factor?

• abiotic

• biotic

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

A population is...

• A group of one species in one area
• Multiple species that live in one area
• All of the living and nonliving things in an area
• None of these

What is the definition of abiotic?

• non-living things in the ecosystem

• producers

• the place in an ecosystem where an organism lives

• population

Tags

NGSS.MS-LS2-3

Which is the correct order of the levels of organization in an ecosystem from least to most diverse?

• population<organism<ecosystem<community<biome<biosphere

• organism< population<ecosystem<community<biome<biosphere

• organism<population<community<ecosystem<biosphere<biome

• organism<population<community<ecosystem<biome<biosphere

Which of the following is an example of an interaction between a biotic and abiotic factor in an ecosystem?

• A deer drinks from a pond.

• A robin lays eggs.

• A fish eats an insect.

• Bacteria break down the remains of a dead plant

Tags

NGSS.MS-LS2-3

Each level of organization in an ecosystem is made up of parts. In a diagram of a coral reef ecosystem, which of the following is an example of the population level of organization?

• A group of sea anemones

• a colony of coral and a stand of sea grass

• seawater

• a clown fish