Biology Questions: Levels of Organization

What is the smallest unit of life?

• Atom

• Molecule

• Tissue

• Atom

What level comes after organelle in biological organization?

• Organelle

• Organ

• Organism

• Organelle

Which level is made of groups of similar cells performing a shared function?

• Organ

• Tissue

• Population

• Organ system

Which is the correct order: Organism to atom?

• Organism → Atom

• Molecule → Organ

• Tissue → Cell

• Atom → Molecule

An organ system is made of multiple organs working together.

• TRUE

• FALSE

The biosphere is all ecosystems/biomes where life exists on Earth.

• TRUE

• FALSE

Which of these is a heart?

• DNA

• Cell

• Muscle tissue

• Heart

Which level describes a population?

• Community

• Population

• Ecosystem

• Organism

A forest with deer represents which level?

• Community

• Ecosystem

• Population

• Biome

Select all that apply to population.

• Ecosystem

• Biome

• Organism

• Population