Population and Energy Flow Flashcards

1
Q

How can you determine if an animal in a food web is part of multiple levels?

A

If that animal has arrows from two different levels pointing to it.

For example:

The duck has an arrow from bullrush and the snail therefore it is a first level and a second level

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2
Q

Symbiosis

A

The interaction between two organisms from different species.

There are three types of symbiosis: Mutualism, Commensalism, and Parasitism.

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2
Q

The four limiting factors we discussed in class

A

Food

Water

Shelter

Climate

(the same as the necessities of life)

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3
Q

Consumer

A

An organism that gets its energy by eating/consuming other organisms

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3
Q

What defense mechanism is represented by the picture?

A

Mimicry

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4
Q

The four factors that can change a population size.

A

Birth Rate - makes it increase

Immigration - makes it increase

Death Rate - makes it decrease

Emigration - makes it decrease

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4
Q

cooperation vs symbiosis

A

copperation is two or more organisms of the same species. Symbiosis is between two different species

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5
Q

Population

A

All of the organisms of one species in one specific area

For xample the population of squirrels in Severna Park vs the population in Norfolk, VA

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5
Q

Predator

A

An animal that hunts adn kills another animal for food.

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7
Q

Chemical Energy

A

The energy store in the bonds of a chemical compound.

For example - the energy stored in food.

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8
Q

Amount of energy that is transferred from one level of the energy period to the next.

A

10% of the level below

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9
Q

Prey

A

an animals that is hunted adn killed for food

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10
Q

Scavenger

A

Animals that eat dead animals that have been killed by another animal

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11
Q

What defense mechanism is represented by the picture?

A

False Coloring

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12
Q

example of mutualism

A

tick bird and gazelle

cleaner fish and a moray eel

bee and flower

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13
Q

The main categories found in the energy pyramid

A

Producers (bottom ofpyramid)

Consumers (1st level, 2nd level, etc)

decomposers ( on the outside)

13
Q

Direction of arrows in a food web

A

The arrows always go from the organism being eaten to the organism doing the eating

for example:

berries —-> deer

14
Q

Energy Pyramid

A

a model that shows the amount of energy is available for each feeding level in an ecosystem.

15
Q

Limiting Factor

A

An environmental factor that causes a species population to stop growing or decrease in size.

17
Q

Producer

A

An organism that captures energy adn stores it as chemical energy in food

17
Q

How do predator and prey populations affect each other?

A

The populations follow one another. So if the prey population increases the predator population will increase making the prey population decrease which makes the predator population decrease and so on.

18
Q

example of commensalism

A

orchid and tree

remora and shark

clownfish and anemome

19
Q

Food Web

A

A complex model that shows the feeding relationship between many different producers and consumers

20
Q

What defense mechanism is represented by the picture?

A

Protective Covering

21
Q

decomposer

A

organisms that break down dead plant adn animal matter into simpler compounds

22
Q

Carrying Capacity

A

The maximum number of organisms of one species an ecosystem can support.

*note this is different for each individual speacies.

23
Q

Parasitism

A

An interaction where one organism benefits and the other is harmed.

24
Q

example of parasitism

A

tick and dog

strangler fig and tree

leech on person

25
Q

What defense mechanism is represented by the picture?

A

Warning Colors

27
Q

Immigration

A

Moving into a new population

28
Q

competition

A

When two or more organisms fight over resources

30
Q

Emigration

A

moving out of a population

31
Q

Mutualism

A

An interaction where both organisms involved benefit.

33
Q

How Carrying Capacity plays a role in determining population size.

A

Carrying capacity is going to determine the maximum number of organisms that can live there soif a population goes above the carrying capacity it will start to decline.

34
Q

Scavenger vs predator

A

A predator actively kills and eats the prey, while a scavenger eats the leftovers of the dead prey

35
Q

Commensalism

A

An interaction where one of the organisms benefits, but the other does not benefit but also is not harmed.

37
Q

Cooperation

A

When two or more organisms of the same species work together to get resources

38
Q

What defense mechanism is represented by the picture?

A

Camouflage