Unit2

the basic building blocks of all living things.

• Cells
• Atoms
• Molecules
• Particles

What is the smallest part of a living thing that can carry out all the processes of life?

• Cell
• Atom
• Molecule
• Organ

Tiny structures, also called _______, perform jobs to keep cells alive.

• organelles

• feet

• buildings

• blocks

A ______ organism is made up of only one cell.

• multicellular

• animal

• unicellular

• plant

Which of the following is a unicellular organism?

• Bacteria

• Animal

• Bird

• Plant

A _______ organism is made of more than one cell.

• Unicellular
• Multicellular
• Acellular
• Monocellular

a group of organs working together to perform a specific function.

• Cell
• Tissue
• Organ system
• Organism

What is an example of a multicellular organism?

• Virus
• Bacteria
• Amoeba
• Human

a bone framework enclosing the brain of a vertebrate

• Skull
• Ribcage
• Spine
• Pelvis

What are the 26 bones that make up your backbone called?

• Cranium
• Femur
• Tibia
• Vertebrae