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N5 Biology > KA1 - Ecosystems > Flashcards

KA1 - Ecosystems Flashcards

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1
Q

Definition of Biodiversity

A

The variety of life in the world or in a particular habitat or ecosystem

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2
Q

Definition of Habitat

A

The area where an organism (or group of organisms) live

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3
Q

Definition of Community

A

All of the organisms (plants and animals) living in a habitat

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4
Q

Definition of Population

A

The total number of one species of plant or animal in a habitat

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5
Q

Definition of Species

A

Organisms that can interbreed to produce fertile offspring

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6
Q

Definition of Ecosystem

A

All the organisms (the community) living in a particular habitat and the non-living components with which the organisms interact

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7
Q

Definition of Producer

A

Plants that use light from the sun to produce their own food by photosynthesis

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8
Q

Definition of Consumer

A

Any organism that doesn’t make its own food via photosynthesis and must therefore eat other organisms

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9
Q

Definition of Herbivore

A

Eats plant material only

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10
Q

Definition of Carnivore

A

Eats animal material only

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11
Q

Definition of Omnivore

A

Eats both plant and animal material

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12
Q

Wide variety of species

A

= High Biodiversity

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13
Q

Small variety of species

A

= Low Biodiversity

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14
Q

Is an ecosystem more stable with a high biodiversity or a low one? Why?

A

Ecosystems are more stable with higher ecosystems due to the variety of food sources and materials

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15
Q

Ways that the human population are (negatively) affecting biodiversity

A
  • Overfishing
  • Pollution
  • Deforestation
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16
Q

Natural occurrences that negatively affect biodiversity

A

Natural Disasters (earthquakes, tsunamis, forest fires and hurricanes)

17
Q

Another word for the role an organism plays in its community

A

Niche

18
Q

Competition between members of different species (less intense)

A

Interspecific Competition

19
Q

Competition between members of the same species (more intense)

A

Intraspecific Competition

N5 Biology (2 decks)

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