Population and Energy Flow

Question 1

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

Answer 1

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

Question 2

Symbiosis

Answer 2

The interaction between two organisms from different species.

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

Question 2

The four limiting factors we discussed in class

Answer 2

Food

Water

Shelter

Climate

(the same as the necessities of life)

Question 3

Consumer

Answer 3

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

Question 3

What defense mechanism is represented by the picture?

Answer 3

Mimicry

Question 4

The four factors that can change a population size.

Answer 4

Birth Rate - makes it increase

Immigration - makes it increase

Death Rate - makes it decrease

Emigration - makes it decrease

Question 4

cooperation vs symbiosis

Answer 4

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

Question 5

Population

Answer 5

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

Question 5

Predator

Answer 5

An animal that hunts adn kills another animal for food.

Question 7

Chemical Energy

Answer 7

The energy store in the bonds of a chemical compound.

For example - the energy stored in food.

Question 8

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

Answer 8

10% of the level below

Question 9

Prey

Answer 9

an animals that is hunted adn killed for food

Question 10

Scavenger

Answer 10

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

Question 11

What defense mechanism is represented by the picture?

Answer 11

False Coloring

Question 12

example of mutualism

Answer 12

tick bird and gazelle

cleaner fish and a moray eel

bee and flower

Question 13

The main categories found in the energy pyramid

Answer 13

Producers (bottom ofpyramid)

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

decomposers ( on the outside)

Question 13

Direction of arrows in a food web

Answer 13

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

for example:

berries —-> deer

Question 14

Energy Pyramid

Answer 14

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

Question 15

Limiting Factor

Answer 15

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

Question 17

Producer

Answer 17

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

Question 17

How do predator and prey populations affect each other?

Answer 17

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.

Question 18

example of commensalism

Answer 18

orchid and tree

remora and shark

clownfish and anemome

Question 19

Food Web

Answer 19

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

Question 20

What defense mechanism is represented by the picture?

Answer 20

Protective Covering

Question 21

decomposer

Answer 21

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

Question 22

Carrying Capacity

Answer 22

The maximum number of organisms of one species an ecosystem can support. \*note this is different for each individual speacies.

Question 23

Parasitism

Answer 23

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

Question 24

example of parasitism

Answer 24

tick and dog strangler fig and tree leech on person

Question 25

What defense mechanism is represented by the picture?

Answer 25

Warning Colors

Question 27

Immigration

Answer 27

Moving into a new population

Question 28

competition

Answer 28

When two or more organisms fight over resources

Question 30

Emigration

Answer 30

moving out of a population

Question 31

Mutualism

Answer 31

An interaction where both organisms involved benefit.

Question 33

How Carrying Capacity plays a role in determining population size.

Answer 33

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.

Question 34

Scavenger vs predator

Answer 34

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

Question 35

Commensalism

Answer 35

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

Question 37

Cooperation

Answer 37

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

Question 38

What defense mechanism is represented by the picture?

Answer 38

Camouflage