Biology Lesson 2

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

• They are made up of cells.

• They reproduce.

• They are based on a universal genetic code.

• They can survive without cells.

Match the following units with their correct description as the basic unit of structure and function in living things.

• The smallest unit of matter

• Atoms

• A part of an organism that is typically self-contained and has a specific vital function

• Organs

• The basic unit of structure and function in living things

• Molecules

• A group of atoms bonded together

• Cells

Living things are based on a universal genetic code. What is the name of the molecule that carries this genetic information?

• RNA

• DNA

• Proteins

• Lipids

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

• They grow and develop.

• They respond to the environment.

• They maintain an internal balance.

• They remain unchanged over time.

What do living things do in response to environmental changes?

• They maintain an internal balance.

• They change over time.

• They grow and develop.

• They respond to the environment.

How do living things maintain stability?

• They change over time.

• They grow and develop.

• They maintain an internal balance.

• They respond to the environment.

Which crosscutting concept in biology focuses on the regularities and trends in nature that can be observed and used as a basis for further investigation?

• Stability and Change

• Patterns

• Scale, Proportion, and Quantity

• Structure and Function

Which crosscutting concept in biology is concerned with the breakdown and organization of complex systems into simpler parts?

• Cause and Effect: Mechanism and Explanation

• Systems and System Models

• Energy and Matter: Flows, Cycles, and Conservation

• Structure and Function

Which crosscutting concept in biology examines the aspects of how and why phenomena occur and what causes them?

• Cause and Effect: Mechanism and Explanation

• Stability and Change

• Scale, Proportion, and Quantity

• Energy and Matter: Flows, Cycles, and Conservation

Which crosscutting concept in biology deals with the tracking of energy and substances as they move into, through, and out of systems?

• Patterns

• Systems and System Models

• Energy and Matter: Flows, Cycles, and Conservation

• Structure and Function