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1.3 Directed Reading A
Flash cards from my 1.3 directed reading a
15
Science
7th Grade
05/01/2014

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Cards

Term
How do multicellular organisms grow?
Definition
By making more small cells.
Term
What are the three benefits of being multicellular?
Definition
1. Larger size
2. Longer life
3. Specialization
Term
What is a tissue?
Definition
A group of cells that work together to perform a specific job.
Term
What are the four basic types of tissues in animals?
Definition
1. Nerve
2. Muscle
3. Connective
4. Protective
Term
What are the three basic types of tissues in plants?
Definition
1. Transport
2. Protective
3. Ground
Term
What is an organ?
Definition
A structure that is made up of two or more tissues working together.
Term
What is an organ system?
Definition
A group of organs working together to perform a particular function.
Term
What are examples of plant organs.
Definition
1. Leaves
2. Stems
3. Roots
Term
What is an organism?
Definition
Anything that can perform a life process.
Term
What does unicellular mean?
Definition
Any organism with only one cell.
Term
What is the lowest level of organization?
Definition
Cells
Term
What is the highest level of organization?
Definition
Organ systems
Term
What is structure?
Definition
The arrangement of parts in an organism.
Term
What is function?
Definition
The job the part does within an organism.
Term
What is alveoli?
Definition
The millions of tiny air sacs in the lungs.
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