Biology Levels of Organization

What are the basic units of matter?

• Cells

• Atoms

• Tissues

• Organs

Which of the following is an example of a molecule? A) Carbon B) Water (H2O) C) Oxygen D) Nitrogen.

• Carbon

• Water (H2O)

• Oxygen

• Nitrogen

What is the function of the heart?

• Processes nutrients

• Pumps blood

• Facilitates gas exchange

• Transmits nerve impulses.

Which system includes the heart, blood vessels, and blood?

• Respiratory System

• Digestive System

• Circulatory System

• Nervous System

What are groups of similar cells working together called?

• Organs

• Tissues

• Molecules

• Atoms

Which type of tissue transmits nerve impulses?

• Connective Tissue

• Muscle Tissue

• Nervous Tissue

• Epithelial Tissue

Which of the following is an example of a population?

• A single tree

• A herd of elephants in a savanna

• A forest with various species

• The Earth as a whole.

What defines a community in biological terms?

• A single organism

• Different populations of organisms living and interacting in a particular area

• The global ecological system

• Non-living components.

What is an example of an abiotic factor in an ecosystem?

• Plants

• Animals

• Water

• Bacteria

What is the definition of the biosphere?

• A) A single organism

• B) A group of populations

• C) The global ecological system integrating all living beings and their relationships

• D) A type of ecosystem.