1. Hierarchy of Biological Order
Packet #2
Tuesday, January 01, 2019

2. Hierarchy
The living world is a hierarchy with each level of biological structure building on the level below it
Tuesday, January 01, 2019

3. Tuesday, January 01, 2019

4. Hierarchy Vocabulary Atom Molecule Unit of matter
Smallest unit of an element
Having all the characteristics of that element and consisting of a dense, central positively charged nucleus
Molecule
Particle composed of one or more atoms held together by chemical bonds
Tuesday, January 01, 2019

5. Vocabulary II Organelle Tissue Organ
Differentiated structure within a cell that performs a specific function
Tissue
Group of usually similar cells that together carry out a specific function
Organ
Structure of an organism usually composed of several tissue types--organized into a functional unit
Tuesday, January 01, 2019

6. Vocabulary III Organ System Population Community
Two or more organs working together in the execution of a specific bodily function
Population
A group of individuals of the same species, found in the same time and place, and potentially interbreeding
Community
Two or more populations of different species living and interacting in the same area
Tuesday, January 01, 2019

7. Vocabulary IV Ecosystem
All organisms and their non-living environment within a defined area
One or more communities together with their non-living surroundings
Undergoes dynamic changes
Succession
Ecological community is gradually replaced by another
Competition
Occurs when different species living in the same environment (habitat) utilize the same limited resources
Tuesday, January 01, 2019

8. Vocabulary V Biosphere
The part of the earth inhabited by living organisms
Includes both living and non-living components
Tuesday, January 01, 2019

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