Ecology: Conservation of Matter and Elements

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Which of the following statements is true about the conservation of matter?

Matter is neither created nor destroyed, but rather recycled continuously. (correct)

Matter is conserved only in closed systems, not in the environment.

Matter is recycled over and over again, but not conserved.

Matter is constantly being created and destroyed in the environment.

What are the four major categories of organic compounds found in living organisms?

Cellulose, starch, glycogen, and chitin

Sugars, fats, proteins, and minerals

Vitamins, enzymes, hormones, and amino acids

Proteins, carbohydrates, lipids, and nucleic acids (correct)

Which of the following best describes the role of nucleotides in living organisms?

They are the primary source of energy for cellular processes.

They provide structural support to cells.

They carry information between cells, tissues, and organs. (correct)

They regulate the pH balance within cells.

What is the term used to describe the strength of an acid or base?

pH Signup and view all the answers

Which of the following best describes the role of ecology in environmental science?

The scientific study of relationships between organisms and their environment. Signup and view all the answers

What is the term used to describe substances that readily give up hydrogen ions in water?

Acids Signup and view all the answers

What is the scientific study of relationships between organisms and their environment called?

Ecology Signup and view all the answers

Which of the following is NOT an example of an abiotic factor in an ecosystem?

Plants Signup and view all the answers

What term refers to all the members of a species living in a given area at the same time?

Population Signup and view all the answers

According to the second law of thermodynamics, what happens to energy with each successive energy transfer or transformation in a system?

Less energy is available to do work Signup and view all the answers

Which of the following organisms are considered producers in an ecosystem?

Green plants and algae Signup and view all the answers

What is the term used to describe the interconnection of individual food chains in an ecosystem?

Food web Signup and view all the answers

What is the process used to release metals from ores, which is a major source of pollution?

Smelting Signup and view all the answers

Which of the following is NOT a greenhouse gas contributing to the greenhouse effect?

Oxygen Signup and view all the answers

What is the long term change in the average weather patterns that define Earth's climate called?

Climate Change Signup and view all the answers

Which process offers great potential for extending our supplies of economic minerals and reducing the effects of mining?

Conservation Signup and view all the answers

What geological hazards are mentioned in the text?

Earthquakes Signup and view all the answers

What does the greenhouse effect result from?

Trapping of heat radiating from Earth in the atmosphere Signup and view all the answers

Ecology: Conservation of Matter and Elements

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