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Ecology Intro (Levels, Relationships & Population Data)

Ecology Intro (Levels, Relationships & Population Data)

Assessment

Presentation

Biology

9th - 12th Grade

Medium

NGSS
MS-LS2-2, MS-LS2-4, MS-LS2-1

+2

Standards-aligned

Created by

Shatavia Harris

Used 12+ times

FREE Resource

26 Slides • 33 Questions

1

Introduction to Ecology:

  • ​Ecological Organization

  • Ecological Relationships

  • Population Data

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​Ecological Levels of Organization
(Smallest to Largest)

  • Organism- A single living thing that obtains food, water, and shelter to live, grow, and reproduce in its habitat (environment).

  • Population- A group of interbreeding organisms (species) living in the same area.

  • Community- All the population in the ecosystem

  • Ecosystem- A community of living organisms plus their nonliving environment.

  • Biome- Includes all the biotic and abiotic features of an environment.

  • Biosphere- Everywhere on Earth that can support life.

5

​Ecological Niche

Ecological Niche refers to the role of an organism in its environment.

-Two species with identical

 niches cannot coexist

 in the same habitat.

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6

Multiple Choice

In ecology, what is interdependence?

1

Living things do not need the help of other things to survive

2

Living things rely on other living and non-living things to survive.

3

Biomes depend on other biomes to survive.

4

What is celebrated every 4th of July

7

Multiple Choice

The study of the relationships between living and non-living things is called

1

Taxonomy

2

Evolution

3

Ecology

4

Biology

8

Multiple Choice

All the organisms of a species in an area make up a(n)

1

Ecosystem

2

Population

3

Biome

4

Community

9

Multiple Choice

All the living things in an area makes up a(n):

1

Ecosystem

2

Population

3

Biome

4

Community

10

Multiple Choice

All the living things in an area plus their surrounding is called a(n):

1

Ecosystem

2

Population

3

Biome

4

Community

11

Multiple Choice

A bunch of ecosystems with similar climates is a(n):

1

Ecosystem

2

Population

3

Biome

4

Community

12

Multiple Choice

Everywhere that living things are found is called the:

1

Biosphere

2

Population

3

Biome

4

Community

13

Ecological Relationships

  • Competition

  • ​Predation

  • ​Symbiosis

14

​1. Competition

Example: In a dense forest, plants compete with each other for living space that provides  sunlight.

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When two species in an ecosystem need to share a valuable and often limited resource such as food, shelter, sunlight, living space, or water

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Three Types of Relationships Found in Ecosystems!

1. Competition

​2. Predation

​3. Symbiosis

16

​Competition Example 2

As lion populations grow, they compete for resources such as food and water.  If there is too little food or water for the growing population some will die.  

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Competition happens in two types:
1. Intraspecific
2. Interspecific

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​Intraspecific Competition

IntrAspecific Competition: 

Occurs when animals of the SAME species compete for the same resources.

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​Interspecific Competition

IntERspecific Competition:

  • Occurs when organisms of DIFFERENT species compete for the same resources.

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20

Multiple Choice

______________ occurs when more than one individual or population tries to use the same limited resource.

1

Niche

2

Predator-prey

3

Availability

4

Competition

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Multiple Choice

Question image

Individuals of the same species compete for the same resources is_________ competition.

1

Intraspecific

2

Interspecific

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Multiple Choice

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Individuals of the different species compete for the same resources is_________ competition.

1

Inraspecific

2

Interspecific

23

Multiple Choice

When a pine tree grows real tall and blocks sunlight to another pine tree it is _______ competition.

1

Interference

2

Intraspecific

3

Interspecific

4

Exploitative

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​2. Predation

- Different species in an ecosystem interact where one species (predator) will hunt another species (prey) as a food source.

​Example: Lions and Zebra have a predator-prey relationship

-

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  • Too much prey ​will result in overpopulation . More competition, resulting in death of preys

  • Too much predator will lead to death of prey and ultimately predators​

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  • Predator- prey relationships maintain balance in an ecosystem

  • ​When the number of predators decreases allows a prey population to make a comeback. 

  • ​ As the predator population   is increasing, the prey population is decreasing

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​Explain the predator-prey cycle shown in the diagram

28

Multiple Choice

One organism hunts and eats another organism.

1

predation

2

mutualism

3

carnivore

4

parasitism

29

Multiple Choice

Question image

Wild Pig

1

Predator

2

Prey

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Multiple Choice

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Alligator

1

Predator

2

Prey

31

Multiple Choice

When predator numbers decrease, prey numbers ____________ because fewer of them are being consumed.
1
decrease
2
increase
3
stay the same
4
divide in half

32

Multiple Choice

Question image

Predator population lags behind prey population because:

1

Increase in predators leads to decrease in prey

2

Increase in predators leads to increase in prey

3

Increase in predators leads to decrease in producers

33

Multiple Choice

Question image
What statement is TRUE about the graph?
1
The prey is the green line because there needs to be more prey than predators.
2
The prey is the red line because there needs to be more predators than prey.
3
The green line is the producers
4
The red line is the producers

34

Multiple Choice

TRUE OR FALSE:

Removing a top predator from an ecosystem is always a good thing for the prey that live there.

1

True

2

False

35

3. Symbiosis

Symbiosis is a term used to describe close and often long-lasting interactions between different biological species
There are 3 types:
1. Mutualism
2. Commensalism
3. Parasitism

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​Mutualism

Both organisms are benefited by the relationship.

Example: The clown fish is protected from predators by the sea anemone and the anemone is cleaned by the clownfish.

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​Commensalism

One organism is benefited by the relationship and the other organism is not harmed or helped

Example: A cattle egret (benefits) follows cattle (not affected) and eats the insects that are stirred up by the movement of the cattle through the grass

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​Parasitism

One organism is benefited (parasite)  by the relationship and the other organism is harmed (host)

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39

Multiple Choice

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A relationship that describe a close interaction between two different species is known as what? (This is the broad "umbrella" term.)

1

Biodiversity

2

Symbiosis

3

Predation

4

Emigration

40

Multiple Choice

A relationship between two organisms in which one organism benefits and the other is harmed.

1

Mutualism

2

Competition

3

Parasitsm

4

Commensalism

41

Multiple Choice

Which of the following symbiotic relationships is considered parasitic?

1

Ticks feeding on a dog

2

Bees transporting pollen from flowers

3

Pilotfish swimming under sharks

4

Birds eating the insects from the back of hippo

42

Multiple Choice

A tapeworm lives in the intestines of its host. Which example best describes the relationship between the tapeworm and its host?

1

The tapeworm benefits from its host; however, the host is not affected.

2

The tapeworm does not benefit from its host, but the host does benefit.

3

The tapeworm benefits from its host, and the host is negatively affected.

43

Multiple Choice

An organism that lives on or in a host and causes it harm is called
1
a host
2
a parasite
3
a cell
4
a virus

44

Multiple Choice

Which of these best describes parasitism?

1

One species benefits while another species also benefits

2

One species benefits while another species is killed

3

One species benefits while another species is harmed

4

One species benefits while nothing happens to another species

45

Multiple Choice

Type of relationship: A wolf eating a rabbit.

1

Predator/prey

2

Parasite/host

3

Producer/consumer

4

Competitors

46

Multiple Choice

Type of relationship: A wolf eating a rabbit.

1

Predator/prey

2

Parasite/host

3

Producer/consumer

4

Competitors

47

Multiple Choice

Question image

A symbiotic relationship in which both organisms benefit:

1

Competition.

2

Mutualism.

3

Commensalism.

4

Parasitism.

48

Multiple Choice

Question image

Remoras are fish that generally latch on to sharks and eat leftovers of food from the shark. This is an example of which type of ecological relationship?

1

Mutualism

2

Commensalism

3

Parasitism

4

Competition

49

Multiple Choice

Question image
This is known as a relationship in which both organisms involved benefit. 
1
Predator-Prey
2
Commensalism
3
Mutualism
4
Decomposition

50

Multiple Choice

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Pseudoscorpions often hitch rides on the backs of large beetles or true bugs. What is the ecological relationship?

1

Mutualism

2

Commensalism

3

Parasitism

4

Cooperation

51

Population Ecology

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56

Multiple Choice

When there is a drought and there is limited water, the water would

1

cause exponential growth

2

be a limiting factor

57

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58

Multiple Choice

A disease wipes out most of the rabbit population in a forest. What type of limiting factor would this be?

1

density-independent

2

density dependent

59

Multiple Choice

The highest population an environment can support is called

1

a limiting factor

2

exponential growth

3

carrying capacity

Introduction to Ecology:

  • ​Ecological Organization

  • Ecological Relationships

  • Population Data

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