1. What characteristics do living creatures have in common?
Properties of Life
What characteristics do living creatures have in common?

2. Characteristics of Living Things
All living things:
have an orderly structure
produce offspring
grow and develop
adjust to changes in the environment
Use energy
Adapt to their environment
evolve

3. Living creatures are ORGANIZED
All made of the same collection of chemicals, but we are organized as…
molecules
proteins, fats, carbohydrates, nucleic acids
carbohydrates
proteins
DNA

4. Living things are organized
orderly structure: (one or more cells) ~ cell- smallest unit of life ~tissue- group of cells that perform a common function ~organ- group of tissue that perform a common function ~organ system- a group of organs that perform a common function ~organism- any complete living thing

5. Living creatures are ORGANIZED
All made of the same collection of chemicals, but we are organized as…
organelles & cells
plant cells & animal cells
plant cell
animal cell

6. Living creatures are ORGANIZED
All made of the same collection of chemicals, but we are organized as…
organs & organ systems
respiratory, circulatory, digestive, etc.

7. Living creatures REPRODUCE
Make the next generation

8. Living things change during their lives
Growth results in an increase in the amount of living material and the formation of new structures.(cell division )
All of the changes that take place during the life of an organism are known as its development.

9. Living things make more living things
Reproduction~ the production of offspring.
(necessary for species *to survive; not necessary for individual organism’s survival)
2 types:
1. asexual: 1 parent: offspring identical to parent
2. sexual: 2 parents, offspring not identical to parents
* A species is a group of organisms that can interbreed and produce fertile offspring in nature

10. Living things adjust to their surroundings
Anything in an organism’s external or internal environment that causes the organism to react is a stimulus
A reaction to a stimulus is a response.

11. Living creatures RESPOND
Respond to internal changes
Homeostasis
maintaining balanced conditions inside the body
Respond to external changes

12. Living things adjust to their surroundings
Regulation of an organism’s internal environment to maintain conditions suitable for its survival is called homeostasis

13. Living creatures use ENERGY
Metabolism
all the reactions your body performs to make & use energy (from food)
eating & digestion & elimination of waste
synthesis = building
cellular respiration = making energy
mitochondria

14. ENERGY FLOW ALL ENERGY COMES FROM THE SUN
PLANTS USE THE SUN TO CREATE THEIR OWN FOOD
MEAT EATERS USE A LOT OF ENERGY
PLANT EATERS EAT PLANTS, USING LESS ENERGY THAN THE MEAT EATERS

15. Living things adapt and evolve
Any structure, behavior, or internal process that enables an organism to respond to environmental factors and live to produce offspring is called an adaptation
Adaptations are inherited from previous generations.
The gradual change in a species through adaptations over time is evolution.