Ecological Organization

Multiple Choice

Which of the following best describes the main focus of ecology?

• The study of chemical reactions

• The study of interactions between organisms and their environments

• The study of historical events

• The study of planets and stars

Multiple Choice

The weather is..

• Abiotic

• Biotic

Multiple Choice

Which of the following best describes an organism?

• A group of populations living together

• A single unicellular or multicellular form of life

• All the biotic and abiotic factors in an area

• A specific climate region

Fill in the Blank

A population is defined as a group of organisms of ___ species living in the same place at the same time.

Multiple Choice

Which of the following statements about a community is correct?

• It consists of only one species in an area

• It includes both biotic and abiotic factors

• It is made up of several interacting populations in a common environment

• It refers to all the ecosystems in a region

Open Ended

Explain how a biome is different from an ecosystem.

Multiple Choice

What level of organization can be observed in the image?

• Species
• Population
• Community
• Ecosystem

Multiple Choice

The living world is organized in levels. Biotic and abiotic factors also can be arranged into levels of biological organization. Put the words below in order from the least complex to the most complex

• Community, Organism, Biome, Population, Biosphere, Ecosystem

• Organism, Population, Community, Ecosystem, Biome, Biosphere

• Organism, Biome, Population, Community Biosphere, Ecosystem

Multiple Choice

What is the difference between a niche and a habitat for an organism?

• A niche is where an organism lives, while a habitat is the role it plays in the environment.

• A niche is the unique role a species plays in the environment, while a habitat is where an organism lives.

• A niche and a habitat are the same thing.

• A habitat is only for plants, while a niche is only for animals.

Multiple Choice

An individual belonging to a specific species

• Biotic
• Community
• Organism
• Reptile

Multiple Choice

All the members of one type of species in a specific area.

• habitat
• community
• population
• ecosystem

Multiple Choice

Biologists organize the environment into ecological layers so they can communicate about the areas more efficiently. The diagram shows an example of the organization. If biologists were discussing an ecosystem, which layer on the diagram would they most likely be referencing?

• Layer A

• Layer D

• Layer C

• Layer B

Fill in the Blank

Ecology is the scientific study of interactions between ___ and their environments.

Multiple Choice

An area where an organism finds food, shelter and water in a specific arrangement

• niche
• biosphere
• biome
• habitat

Multiple Choice

The area between the highest mountain and the deepest ocean where life can be found

• Biosphere
• Biome
• Farm
• Ecosystem