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9 science-- ecology > food webs > Flashcards

food webs Flashcards

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Biology 101 flashcards
1
Q

what is a food web?

A

a pictorial representation of a predating relationship among organisms in an ecosystem

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2
Q

what is a food chain?

A

a step by step sequence linking organisms that feed each other

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3
Q

what does a food chain always start with?

A

a plant

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4
Q

what is a plant also known as?

A

producer

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5
Q

what is a herbivore also known as?

A

primary consumer

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6
Q

what is a carnivore also known as?

A

secondary consumer

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7
Q

what is a top carnivore also known as?

A

tertiary consumer

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8
Q

who is trophic level 1?

A

plant

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9
Q

who is trophic level 2?

A

herbivore

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10
Q

who is trophic level 3?

A

carnivore

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11
Q

who is trophic level 4?

A

top carnivore

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12
Q

what is a scavenger?

A

carnivores that eat the remains of dead animals

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13
Q

what is an omnivore?

A

consumer that eats both plant and animal

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14
Q

what is a decomposer?

A

break down organic matter and waste into its components

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15
Q

what is an ecosystem?

A

a system formed by the interaction of a group of organisms with their environment

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16
Q

what does biotic mean?

A

living

17
Q

what does abiotic mean?

A

non living

18
Q

what is symbiosis?

A

a close relationship between two species

19
Q

what is predation?

A

act of killing and eating other animals

20
Q

what is competition?

A

competing for resources such as land nutrient

21
Q

what is an example of a biotic-abiotic interaction?

A
  • dry season
  • fish suffocate due to lack of oxygen (pollution)
  • soil erosion
22
Q

what is a sustainable ecosystem?

A

an ecosystem condition in which balances are maintained over time

23
Q

what is sustainability?

A

the ability to maintain balance over time

24
Q

what is a species?

A

a group of living organisms consisting of similar individuals

25
Q

what is a habitat?

A

the natural home or environment of an animal

26
Q

what is a community?

A

an association of two or more species sharing the same ecosystem

9 science-- ecology (15 decks)

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