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Science > Adaptions and inheritance > Flashcards

Adaptions and inheritance Flashcards

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Biology 101 flashcards
1
Q

What do animals compete for?

A

1) Food
2) Water
3) Space -for hunt and shelter
4) Mates

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2
Q

What do plants compete for?

A

1) Light
2) Water
3) Space
4) Minerals

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3
Q

What is competition?

A

Competing with other organisms to survive.

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4
Q

What are adaptions?

A

Characteristics that help an organism to survive in its environment.

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5
Q

How do animals cope with cold temperature?

A
  • Hibernation
  • Migration
  • Grow thicker coats
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6
Q

What is variation?

A

Differences in characteristics within a species.

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7
Q

What is a species?

A

Organisms that have lots of characteristics in common, and can mate to make fertile offspring.

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8
Q

What is inherited variation?

A

Variation inherited from parents.

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9
Q

What is environmental variation?

A

Variation caused by surroundings and what happens to a person.

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10
Q

What is continuous variation?

A

Characteristics that can take any value within a range of values.

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11
Q

What is discontinuous variation?

A

Characteristics that can only be a certain value.

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12
Q

How should discontinuous variation be plotted?

A

On a bar chart.

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13
Q

How should continuous variation be plotted?

A

On a histogram.

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14
Q

What is DNA?

A

Chemical that contains all the information needed to make an organism.

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15
Q

What are chromosomes?

A

Long strand of DNA which contains many genes.

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16
Q

What are genes?

A

Section of DNA that contains the information for a characteristic.

17
Q

How many chromosomes does a human have?

A

46
(23 from each parent)
(23 pairs)

18
Q

What is evolution?

A

Development of species over time.

19
Q

What is a fossil?

A

The remains of animals which have turned to stone.

20
Q

What is natural selection?

A

Process by which the organisms with the characteristics that are most suited to the environment survive and reproduce, by passing on their genes.

21
Q

What does extinct mean?

A

When no more individuals of a species are left anywhere in the world.

22
Q

What does endangered mean?

A

Species of plants and animals that only have a small population in the world.

23
Q

What is biodiversity?

A

The range of organisms living in an area.

24
Q

What is interdependence?

A

The way in which living organisms depend on each other to survive, grow and reproduce.

Science (8 decks)

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