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Science 9 > Unit 1 - Topic 1 > Flashcards

Unit 1 - Topic 1 Flashcards

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Biology 101 flashcards
1
Q

Variations

A

Differences in characteristics of organisms caused by genetic and environmental factors

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2
Q

Biological diversity

A

The number and variety of organisms in an area

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3
Q

Species

A

A group of organisms that share similar genetic and lhysicqk characteristics

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4
Q

What can species do together

A

Generally these organisms can interbreed and produce fertile offspring

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5
Q

Speciation

A

Evolution of different species from a single ancestor

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6
Q

Structural adaptation

A

Inherited physical characteristics that helps an organism survive in its environment

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7
Q

Behavioural adaptation

A

Inherited characteristic that helps an organism survive in its environment

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8
Q

Diversity index

A

Measure of biological diversity in area

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9
Q

How diversity index is calculated

A

By dividing number of runs in walk-through area by total number of specimens

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10
Q

Variations found in

A

All pops or groups of similar living things

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11
Q

Portmanteau word

A

Words merged together
E.g.
biological diversity = biodiversity
Biological magnification = biomagnification

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12
Q

Decision to eliminate species

A

Effects ppl in positive and negative ways

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13
Q

Medicines come from

A

Biological sources

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14
Q

Pacific yew tree

A

Source of Taxol

Cancer-fighting chemical

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15
Q

Taxol

A

Cancer-fighting chemical

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16
Q

Pacific yew tree used to be

A

Burned as trash

17
Q

Studies suggest

A

When several dif types of plants grow in area, interactions among them promote growth

18
Q

Importance of biological diversity

A

Important for health and survival of natural communities

19
Q

Organisms grouped together if

A

Interbreed in nature

Offspring able to breed

20
Q

Similar in appearance

A

Organisms of same species

21
Q

Always be … within species

A

Variation

22
Q

Biologists have difficulty

A

Deciding if 2 groups of organisms belong to same species

23
Q

Can be … of variation within species

A

Great deal

24
Q

Flora

A

All of plant life in region

25
Q

Fauna

A

All of animal life in a region

26
Q

Galapagos Finches

A

The Galápagos Islands (13)
Equator in Pacific
Great example of speciation
Found by Charles Darwin

Science 9 (21 decks)

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