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Biology 101 > Chapter 1 > Flashcards

Chapter 1 Flashcards

1
Q

What are 2 ways of studying living things?

A

Discovering biology

Experimental biology

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2
Q

What’s involved in the scientific method?

A 
Observations
Ask questions
Propose explanation and hypothesis
Experiment
Use a control: varies in 1 aspect
Report
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3
Q

If a hypothesis is tested many times and is irrefutable it is a ____?

A

theory

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4
Q

What are laws?

A

something consistently observed, mathematically defined, but incompletely explained

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5
Q

What two theories define biological sciences?

A

Cell Theory

Theory of Evolution

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6
Q

What is the Cell Theory

A

All living things are composed of cells

All cells must come from pre-exsisting like cells

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7
Q

When were cells discovered?

A

17th century

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8
Q

What did Robert Hooke do?

A

cellulae

more modern microscopes

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9
Q

Who discovered animalcules?

A

Antwon Leewenhoek

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10
Q

Where do cells come from?

A

pre-exsisting cells (Pasteur proved this)

spontaneous generation

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11
Q

What is the Theory of Evolution?

A

Descent from common ancestor with modifications

Darwin - observations (occurs by nature)

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12
Q

What is Natural Selection?

A

Environment chooses individuals within a population
Adaptions - heritable traits that increase fitness
Artificial selection - through producing things w/ specific traits

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13
Q

Why is evolutions a core theme?

A

It ties together unity(DNA, amino acid) and diversity(1.7 million living species)

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14
Q

How is live different?

A

Biodiversity

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15
Q

What is taxonomy?

A

a classification grouping system developed by Linnaeu

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16
Q

List all the taxons.

A 
Domain
Kingdom
Phylon
Class
Order
Family
Genus
Species
17
Q

What are Eukaryotes?

A

cells with a nucleus

single or multicelled (humans)

18
Q

What are Prokaryotes?

A

no nucleus/ membranous organelles

single cells

19
Q

How are living things alike?

A 
Live exhibits order
Tendency to evolve
Organisms require energy and nutrients
Organisms sense and respond to change
Organisms use DNA
20
Q

What is the Reductionist approach?

A

organize life’s components into levels

understand small and continue to big

21
Q

What is chemical ecology?

A

all sciences come together; big picture

Biology 101 (38 decks)

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