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Biology 101
Flashcards for Ch. 1
14
Biology
Undergraduate 1
09/05/2012

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Cards

Term
What are the five traits of an organism?
Definition
Evolution (in population), Replication, Energy, Information, Cells
Term
What is a Theory?
Definition
It is an explanation for a GENERAL phenomena
Term
What is the Smallest organism?
Definition
Bacteria
Term
What is a cell?
Definition
Organized compartment, bound by plasma membrane.
Term
What are the two things that scientific theories do?
Definition

1. Describes pattern in world

2. Identifies cause (creator) of pattern

Term
What is the Cell Theory?
Definition

Organisms are made of cells. 

Cells are created from pre-existing cells.

Term
What is a hypothesis?
Definition
Explanation for SPECIFIC questions/occurances.
Term
What did the Pasteur experiment do?
Definition

Tested spontaneous theory.

Tested all-cells-from-cells theory.

Term
When doing a comparison experiment, what is the most important step.
Definition
One difference between subjects
Term
What is the fact in the Cell Theory?
Definition
Common Ancestry
Term
What is Natural Selection? Explain
Definition
the way a population changes because of heritable traits.
Term
When does evolution occur?
Definition
When a population changes.
Term
What is fitness? How is it increased?
Definition
Ability to reproduce. Adaptation increases fitness, makes organism better suited to environment.
Term
What are the two conditions for Natural Selection to occur?
Definition

1. Variation in traits in a population.

2. Some individuals have better versions of traits.

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