Cells
The basic structure of all living organisms
Cells
Considered the brain of the cell
Nucleus
An animal with a spine or backbone
Vertebrate
The basic structure of life
Cell
The body has 11 systems that all ________________
Interact or work together
Cells are called the ___________________ of life
Building-blocks
The gel that holds organelles inside the cell
Cytoplasm
An animal without a spine or backbone
Invertebrate
Groups of cells that work together to do a specific job
Tissue
This system gives the body support and structure
Skeletal System
The small parts of a cell that each have a specific job
Organelles
The storage tank that the cell uses to hold water, nutrients and food
Vacuole
Organisms whose body temperature depends on whether it is hot or cold outside
Cold-Blooded
Two or more tissues that work together to carry out a specific job
Organ
This system is made up of our muscles and allows the body to move
Muscular System
Animal cells have this shape
round and irregular
The layer that controls what comes in and out of the cell
Cell Membrane
Organisms that have a constant body temperature that does not change with the weather
Warm-Blooded
Made up of all the organs that work together to do a specific job
Organ System
This system pumps blood through the body
Circulatory System
Plant cells have this shape
square or rectangular
The two organelles that a plant cell has that an animal cell does not have
Cell Wall and Chloroplast
Why do scientists classify all living things?
Scientists classify living things to make it easier to talk about and research organisms. It also makes it easier to identify unknown or newly discovered organisms.
A living thing; can be made of one cell or many cells
Organism
This system includes the lungs and brings air into and out of the body
Respiratory System