Exploring Biological Levels of Organization

What is the smallest unit of an element?

• Organ

• Atom

• Cell

• Molecule

Which particles are found inside the nucleus of an atom?

• Protons and Electrons

• Electrons and Protons

• Neutrons and Electrons

• Protons and Neutrons

What is the chemical formula for water?

• H2O

• H2O2

• HO2

• H2

Which of the following is an example of a cellular organelle?

• Atom

• Molecule

• Mitochondria

• Tissue

What is the basic organizational unit of living material?

• Organ

• Molecule

• Cell

• Tissue

Which type of cell is a neuron?

• Skin cell

• Fat cell

• Nerve cell

• Muscle fiber

What is a grouping of similar cells with a specific function called?

• Cell

• Tissue

• Organ system

• Organ

Which of the following is an example of an organ in the human body?

• Liver

• Bone

• Skin

• Cartilage

What is an individual capable of reproduction called?

• Community

• Organism

• Population

• Ecosystem

What does an ecosystem include?

• Only wildlife

• Only physical features

• Only human population

• Both community and physical features