Biology 3.1

Multiple Choice

Ecology focuses on:

• ways to address environmental pollution and overpopulation.

• how organisms relate to each other and their environment.

• how human activities affect the environment.

• the relationship between economics and biology.

Multiple Choice

Which of the following is a biotic factor?

• temperature

• water availability

• competition for food

• ocean current patterns

Multiple Choice

When biologists talk about ecology on a global scale, they use the term:

• ecosystem

• biosphere

• community

• population

Multiple Choice

A population includes all

• members of one species in an area

• living organisms in an area

• members of a certain species

• members of an ecosystem

Multiple Choice

Which of the following is NOT a method scientists use to study ecology?

• models

• experimentation

• dissection

• observation

Fill in the Blanks

consists of all life on Earth and all parts of the Earth in which life exists, including land, water, and the atmosphere

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the scientific study of interactions among and between organisms and their physical environment

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a group of individuals that belong to the same species and live in the same area

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an assemblage of different populations that live together in a defined area

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all the organisms that live in a place, together with their physical environment

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a group of ecosystems that share similar climates and typical organisms

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any living part of the environment with which an organism might interact, including animals, plants, mushrooms and bacteria.

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any nonliving part of the environment, such as sunlight, heat, precipitation, humidity, wind or water currents, soil type, etc.