Characteristics of Organisms
Another name for living things
organisms
The ability of an organism to respond to stimuli and maintain a stable internal environment
Homeostasis
List the levels of organization of the human body from smallest to largest.
Cells, Tissues, Organs, Organ Systems, Organism
What scientist coined (came up with) the term "cell"?
Robert Hooke
This is the structural and functional unit of all organisms
Cell
When we are outside on a hot summer day, our body sweats and releases heat. This is an example of our body maintaining ____________
homeostasis
1. Organization
2. Growth & Development
3. Reproduction
4. Response to Stimuli
5. Homeostasis
6. Energy
Our blood is made of red blood cells and white blood cells. Since our blood is made of many cells working together, it is considered a ____________
tissue
Schleiden was a botanist that studied _________
Schwann was a zoologist that studied __________
Plants
Animals
1. All living things are composed of one or more cells
2. Cells are the basic unit of life
3. Cells come from pre-existing cells
How many characteristics of life must something have to be considered living?
all 6
single or multi
Various organs play a role in digestion - stomach, pancreas, intestines, etc. These organs work together to create a ______ ______
organ system
Many scientists were involved in the creation of the cell theory. It started with the invention of the microscope. Approximately how many years passed from the invention of the microscope to the creation of the cell theory?
200 years
Cell theory states that all living things are made of ________
Cells
An organisms reaction to internal or external stimuli is it's ______
response
How do multicellular organisms grow?
They increase the number of cells they have
Our heart is made of different types of tissues working together. Our heart is a _______
organ
Schleiden and Schwann disagreed on how cells are created.
a. Who was right
b. what other scientist helped them come to the correct conclusion?
a. Schwann
b. Rudolf Virchow
The cell theory states that all cells come from _________
pre-existing cells
All living things have specialized structures that work together to perform specific functions. What characteristic of life is this?
Organization
The process by which organisms make new organisms is __________
reproduction
What is more complex? our heart or the entire circulatory system?
circulatory system
What scientist was the first to discover LIVING cells?
Leeuwenhoek
The cell theory states that cells are the basic units of ______
life / living things