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1
Q

What is ecology?

A

The stufy of interactions among organisms. And between organisms and their environment

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2
Q

Energy flow through an ecosystem

A

The flow of energy through an ecosystem is one of the most important factors that determines the systems capacity to sustain life

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3
Q

What is a food chain?

A

A series of steps in which organisms transfer energy by eating and being eaten

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4
Q

What is a food web?

A

A food web will list every animal in the ecosystem

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5
Q

What is a autotroph/producer?

A

An autotroph will produce its own source of food with the power of sunlight without hunting other species. This is called photosynthesis.

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6
Q

Herbivore

A

A consumer that eats only plants.

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7
Q

Carnivore

A

A consumer that eats only animals.

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8
Q

Omnivore

A

An animal that eats both plants and animals

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9
Q

Decomposer

A

an organism, especially a soil bacterium, fungus, or invertebrate, that decomposes organic material.

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10
Q

What is the source of all energy in a an ecosystem?

A

The sun

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11
Q

The flow of ____through an ecosystem

A

Energy

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12
Q

primary consumer: first

A

First level of consumers in a food chain, they eat producers, usually herbivores

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13
Q

Secondary consumer: means second

A

Second consumers in the food chain eats the primary producer,usually omnivore or carnivore

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14
Q

teritary consumer:means third

A

Third consumer,eats the secondary consumer, carnivore\carnivore

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15
Q

quaternary consumer:means fourth

A

Fourth consumer, eats the tertiary consumer, carnivore

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16
Q

Primary consumer example

A

Cow

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17
Q

secondary consumer example

A

Snake

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18
Q

Tertiary consumer example

A

Hawk

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19
Q

Quaternary consumer example

A

Lion

20
Q

What is the purpose of a food web?

A

The purpose of a good web is to show feeding relationships between organisms in an ecosystem

21
Q

energy pyramid

A

Pyramid model of energy flow in a community

22
Q

Tropic level

A

Level or position organism hold in a food chain or energy pyramid

23
Q

3rd Trophic Level: Secondary Consumer

A

The very top

24
Q

2nd Trophic Level: Primary Consumer

A

The middle of pyramid

25
Q

1st Trophic Level: Producer

A

The very bottom of pyramid

26
Q

The 10% rule states…

A

About 10% of the energy transfers in the trophic levels is available to the next trophic level

27
Q

As you move up the pyramid:

A

Energy availability:decrease
Population size: decreases

28
Q

producer trophic level

A

greatest amount of available energy:1000 kcal

29
Q

10% First level consumer:

A

100 kcal

30
Q

10% Second level consumer:

A

10 kcal

31
Q

Heterotroph/consumer

A

A species

32
Q

10% Third level consumer:

A

1 kcal

33
Q

limiting factors

A

Conditions in the environment that put limits on where an organism can live

34
Q

What does the arrows mean in a food chain or food web

A

How energy flows through ecosystem

35
Q

Grass:

A

Grass is autotroph and producer

36
Q

Grasshopper

A

Grasshopper is a primary consumer and a herbivore

37
Q

Snake

A

Snake is a heterotroph,omnivore,secondary consumer

38
Q

Hawk:

A

Hawk is a carnivore, tertiary consumer

39
Q

Fungi:

A

Fungi is a Decomposer

40
Q

What is the purpose of a food web?

A

The purpose of a food web to identify what other species eat

41
Q

What organism is a top predator?

A

The territory level

42
Q

density dependent definition

A

operate strongly only when population density - the number of organisms per unit area reaches a certain level.

43
Q

Density dependent examples

A

competition, predation, parasitism, disease

44
Q

Density independent definition

A

When things and events that happen limit the population size, regardless of the current population size.

45
Q

density independent examples

A

Tornado, Flood, Natural disasters, Laws, Habitat disruption