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Biology > Ecosystems > Flashcards

Ecosystems Flashcards

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1
Q

What is a species ?

A

A group of organisms that are so similar genetically they can interbreed to produce fertile offspring

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2
Q

What is biodiversity ?

A

The variation found between different species and variations found within the same species

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3
Q

What is an ecosystem ?

A

Is a natural biological unit made up of a community of organisms in a habitat and the non living components in which they interact.

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4
Q

What is a population ?

A

A group of living organisms of one species

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5
Q

What is a producer ?

A

A green plant that makes food by photosynthesis. Producers make their own food

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6
Q

What is a consumer ?

A

Can not make their own food. They must consume other organisms to get the food they need

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7
Q

What is a herbivore ?

A

Only eats plant material

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8
Q

What is a carnivore ?

A

Only eats animal material

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9
Q

What is a carnivore ?

A

Only eats animal material

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10
Q

What is an omnivore

A

Eats both plant and animal material

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11
Q

What is a predator ?

A

Hunts other animals for its food supply

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12
Q

What is prey ?

A

Is hunted by other animals

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13
Q

What is a food chain ?

A

A relationship where one organism feeds of the previous one and in turn provides food for the next in the series. A food chain always begins with a green plant, each arrow in a food chain show the direction of energy flow.

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14
Q

What is a food web ?

A

Is a number of interconnecting food chains. An ecosystem normally contains many interconnecting food chains. This more complex relationship, is called a food web.

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15
Q

What does an ecosystem consist of ?

A

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

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16
Q

What is a niche ?

A

Is a role that an organism plays within its community.

17
Q

What is a niche made up of ?

A

The resources an organism needs in its ecosystem, such as light and nutrients availability and its interactions with other organisms in the community.

18
Q

What biotic and abiotic factors do niches involve ?

A

Competition, predation and the conditions an organism can tolerate such as temperature.

19
Q

When does competition take place in ecosystems ?

A

When resources are in short supply.

20
Q

What is interspecific competition ?

A

Takes place amongst individuals of different species for one or a few resources they need.

21
Q

What is intraspecific competition ?

A

Takes place amongst individuals of the same species for all the resources they need.

Biology (2 decks)

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