Ecology and Biological Terms Quiz

Which term describes all of the chemical reactions of each cell in an organism that provide energy for life’s processes and create key molecules?

• Ecosystem

• Organism

• Metabolism

• Population

What is an individual member of a species or population known as?

• Community

• Organism

• Ecosystem

• Metabolism

What term is used for multiple organisms of the same species living together?

• Population

• Community

• Ecosystem

• Metabolism

What is the term for multiple populations of different species living together?

• Ecosystem

• Community

• Population

• Organism

What does the biosphere encompass?

• Only the land ecosystems

• The zone of life on Earth, encompassing all of Earth’s ecosystems

• Only the aquatic ecosystems

• Only the atmospheric layer

What is biodiversity?

• The number of species in a single ecosystem

• The variety of organisms considered at all levels, from populations to ecosystem

• The genetic variation within a species

• The number of ecosystems in a biome

What does a cladogram show?

• The number of species in an ecosystem

• The relatedness of organisms

• The genetic variation within a species

• The distribution of ecosystems

What is a dichotomous key used for?

• Identifying organisms based on their characteristics

• Measuring the size of organisms

• Calculating the age of fossils

• Mapping the distribution of species

Which of the following is a characteristic that an organism must possess to be considered living?

• Ability to fly

• Made of cells

• Ability to swim

• Made of water

Which of the following is NOT a characteristic of living organisms?

• Contain DNA or RNA

• Have a metabolism

• Can photosynthesize

• Respond to stimuli