Cells
The smallest unit of life.
A cell
The pattern of structure that scientists refer to when in living things similar cells combine to form tissues.
biological organization
The right atrium is a part of what organ?
The heart
_____________ is defined as the ways in which an organism acts.
Behaviour
An organism that consists of a single cell.
A unicellular organism
Our body is a _____________ because it is made up of highly organized structures that work together to perform functions.
system
Organs of the ______________work together so that animals can move.
muscular system
_____________ is the life process of becoming bigger and stronger.
Growth
Organisms that consist of many cells
multicellular organisms
A _________________________ is the arrangement of parts that make up something.
structure
The _______ that make up the skeletal system support and protect an animal’s body.
bones
The right ventricle is a part of what organ?
The heart
Cells are called the __________ _________ of life.
building blocks
A ________________ is the way that something works to achieve a task or serve a purpose.
function
_____________ push and pull against stiff bones, causing movement.
muscles
A unicellular organism is an organism that consists of a single ___________.
cell
These are formed when similar types of cells join together
tissues
A(n) __________________ is a body part made up of related tissues that performm a specific function.
organ
A nerve is a bundle of _______ that sends and receives messages between the brain and other body parts.
cells
Cells have different _________ that together sustain life.
roles