Living Things
Made of Cells, Need Energy, Grow and Develop..
What are the characteristics of all living things?
Basic unit of all living things
What is a cell?
group of tissues working together to perform a certain function
What is an organ?
Structure of the cell that allows the vital exchange of substances.
What is the cell membrane?
An organism composed of one cell.
What is a unicellular organism?
All living things
What are organisms?
When organs work together to perform a certain task such as breathing
What is an organ system?
Movement of particles in a substance from an area of higher concentration to an area of concentration
What is diffusion?
Smallest kind of organism scientists have discovered
Substances that provide energy and materials that organisms need to grow, develop and reproduce.
What are nutrients?
Famous biologist who discovered variations in structure and function of 13 different finches.
Who is Charles Darwin?
Describes a membrane with very small openings that allow particles of some substances but not others to pass through
What is selectively permeable?
An organism made up of 2 or more cells.
What is a multicellular organism?
Anything that causes a response in an organism.
What is a stimulus?
A small hole in the side of the abdomen of an insect used for breathing
What is a spiracle?
Diffusion of water through a selectively permeable membrane
What is Osmosis?
A group of cells working together with a similar structure and function
What are tissues?
Jumping out of the way of a car is a reaction or response to a stimulus.
What is a response?
Device invented in the 1600s that dramatically changed our understanding of life and cells!
What is a microscope?
What is the Blackfoot word for water?
Ohhki