Chapter 1- Life And Science Flashcards
What are the basic characteristics of all living organisms?
They:
1) are organized
2) Acquire materials and energy
3) are homeostatic
4) respond to stimuli
5) reproduce and grow
6) have an evolutionary history
What is biology?
The study of living organisms and their environment.
What forms with an atom to make up a cell?
Molecules
What is a cell?
The smallest structural and functional unit of an organism
• a nerve cell is one of the types of cells in the human body.
What is a tissue?
A group of similar cells that perform a particular function.
• nervous tissue is composed of millions of nerve cells that transmit signals to all parts of the body.
What makes up an organ?
Several types of tissue.
What does each organ belong to?
An organ system
Organisms are..?
Ex. Trees humans
Are a collection of organ systems
What is a species?
A group of inbreeding organisms
Where does a species belong?
In a population
When a population interacts with another what is it called?
A community
What is an ecosystem?
The community of populations interact with the physical environment.
All the earths ecosystems make up?
Biosphere
