1. Characteristics of Living Things

2. Cells of living things carry out Life Processes necessary for Life.
An organism is said to be alive as long as the cells perform these __8__ life processes.
1. Nutrition- Taking in food and processing the materials needed for life
There are 2 types:
Autotrophic- Plants-Make own food
Heterotrophic- Animals- Need to go out and get food A5

3. Respiration Release of energy… In the MIGHTY Mitochondria.
There are two types:
Aerobic- uses oxygen to make energy
Anaerobic- does not use oxygen to make energy A6

4. Excretion Removal of liquid wastes.
Egestion-is the removal of solid wastes. A7

5. Regulation
Control and coordination of all activities in an organism. This helps maintain balance (Homeostasis).
2 body systems work to maintain this-Nervous and
Endocrine(hormones) A8

6. Growth
To increase in size A9

7. Synthesis Making simple substances more complex. TO BUILD
Example: photosynthesis
A10

8. Transport Distributing and move materials throughout the organism.
Circulatory system- blood carries materials needed for body ( oxygen, nutrients, hormones)
A11

9. Reproduction Production of a new individual.
Not needed for individual to survive.
Must have for the species to survive.
Two Types:
Sexual- 2 Parents
Asexual- 1 Parent
A12

10. Virus
A Virus is an exception. It cannot carry out all the life processes. To stay alive a virus must invade the cell of a living organism. It needs a Host cell to stay alive.
A13

11. Metabolism
THE SUM of ALL life processes
A14

12. Homeostasis
(a steady state). When all the life processes are occurring normally, it is maintaining homeostasis.
A15