what characteristics do living creatures have in common? properties of life
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What characteristics do living creatures have in common?
PROPERTIES OF LIFE
Characteristics of Living Things
1. Organization
2. Energy
3. Reproduce
4. Respond
5. Grow and Repair
6. Evolve
7. Interdependence
7 unifying themes in living organisms…
carbohydrates Proteins
Living Creatures are ORGANIZED
All made of the same collection of chemicals, but we are organized as 4 types of specific molecules
○ proteins, fats, carbohydrates, nucleic acids
DNAFats
Living Creatures are ORGANIZED
Made up of cells: Can be unicellular or multi-cellular
UNICELLULAR MULTI-CELLULAR
Living Creatures are ORGANIZED
Structural Organization for Multi-Cellular Organisms
- organelles – functional units of a cell- 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
Living Creatures use ENERGY Metabolism - all the reactions your body
performs to make & use energy ○ eating & digestion & elimination of waste○ synthesis = building materials the body needs○ cellular respiration = making energy the body
needs
mitochondria
H2OCO2
ATP
Living Creatures REPRODUCE Make the next generation
Living Creatures REPRODUCE 2 Types of Reproduction:
asexual: 1 parent: offspring identical to parent
sexual: 2 parents:offspring not identical to parents
DID YOU KNOW:A species is a group of
organisms that can interbreed and produce
fertile offspring in nature
Living Creatures RESPOND Respond to internal and external changes
to keep homeostasisThis means maintaining balanced conditions
in the body
Living Creatures RESPOND
Anything in an organism’s environment that causes the organism to react is a stimulus.A reaction to a stimulus is a
response.
Living Creatures GROW Growth results in an increase in the
amount of living material and the formation of new structures.DNA has to replicate and protein
synthesis needs to occur in order for growth to happen
Living Creatures GROW All of the changes that take place during the life
of an organism are known as its development.
Living Creatures 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.
Living Creatures EVOLVE
The gradual change in a species through adaptations over time is evolution.
Living Creatures Practice INTERDEPENDENCE
Living organisms interact with each other through symbiotic relationships, or predator-prey relationship in various ecosystems.
Living Creatures Practice INTERDEPENDENCE
The environment will determine what organisms will live there and how they will interact.
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