Energy and Energy and Matter inMatter in

EcosystemsEcosystemsChapter 3Chapter 3

Lesson 1Lesson 1

What are Habitats and What are Habitats and Niches?Niches?

SPI’S : Science 7.5.1, 7.5.2, SPI’S : Science 7.5.1, 7.5.2,

SPI’S: Reading 1.1.15, 1.1.16, 1.2.1, 1.2.2, 1.3.5, SPI’S: Reading 1.1.15, 1.1.16, 1.2.1, 1.2.2, 1.3.5, 2.3.16, 1.6.1, 1.6.2, 1.6.3, 1.6.4, 1.6.5, 1.7.2, 1.7.3, 2.3.16, 1.6.1, 1.6.2, 1.6.3, 1.6.4, 1.6.5, 1.7.2, 1.7.3,

Let’s Talk Let’s Talk Sharks!!Sharks!!

Draw a picture of an animal in its natural habitat. Be sure to name the animal and the habitat in which it lives.

In Your Science Journals…

Let’s discuss your drawing…Let’s discuss your drawing…(Prior knowledge)(Prior knowledge)

What animal did you draw?What animal did you draw?

In what type of habitat does your In what type of habitat does your animal live?animal live?

What other animals could live in What other animals could live in your animal’s habitat?your animal’s habitat?

In this Lesson:In this Lesson:

I will understand the difference I will understand the difference between habitats and niches.between habitats and niches.

I will be able to describe the I will be able to describe the difference between symbiotic difference between symbiotic

relationships.relationships.

I will understand what an animal I will understand what an animal adaptation is. adaptation is.

VocabularyVocabulary

Adaptation: physical or Adaptation: physical or behavioral trait that behavioral trait that helps an organism helps an organism survive in its habitat.survive in its habitat.

VocabularyVocabulary

Habitat: natural Habitat: natural environment where an environment where an organism lives.organism lives.

VocabularyVocabulary

Niche: role of an Niche: role of an organism in its habitat.organism in its habitat.

VocabularyVocabulary

Symbiosis: close, long-Symbiosis: close, long-lasting relationship lasting relationship between species.between species.

Let’s Read!!!Let’s Read!!!

Who would like to Who would like to volunteer to start reading volunteer to start reading P. 86?P. 86?

Check for understanding…Check for understanding…

Describe your habitat…Describe your habitat…

What things in your habitat help you What things in your habitat help you survive?survive?

Possible Answers…Possible Answers…

ElectricityElectricity

WaterWater

ShelterShelter

FoodFood

Compare and ContrastCompare and Contrast

How is a niche like a position on a How is a niche like a position on a sports team? sports team?

Answer…Answer…

An organism plays a specific role or An organism plays a specific role or function in its habitat. All of the function in its habitat. All of the organisms in a habitat depend on organisms in a habitat depend on and interact with the other and interact with the other organisms.organisms.

Let’s Read…Let’s Read…

PP. 88 and 89.PP. 88 and 89.

While your classmate is reading, listen While your classmate is reading, listen for adaptations of the different for adaptations of the different

animals.animals.

Be prepared to discuss it.Be prepared to discuss it.

AdaptationsAdaptationsAnalyzeAnalyze

Look back at the picture on page 9. Look back at the picture on page 9. Use the information on pages 88 and Use the information on pages 88 and 89 to explain why the jackrabbit’s 89 to explain why the jackrabbit’s ears are important to it in its ears are important to it in its environment. environment.

Answer…Answer…

Long ears are an Long ears are an adaptationadaptation that that allow more heat to escape from the allow more heat to escape from the jackrabbit’s body, so it does not jackrabbit’s body, so it does not overheat.overheat.

AdaptationAdaptation

An adaptation is any inherited trait that An adaptation is any inherited trait that gives an organism an advantage in its gives an organism an advantage in its environment.environment.

Examples: Examples: The thick fur and heavy padding of a polar bear The thick fur and heavy padding of a polar bear

help it stay warm in its cold, arctic help it stay warm in its cold, arctic habitathabitat.. The flippers of a sea turtle are adapted for The flippers of a sea turtle are adapted for

swimmingswimming The feet of a desert tortoise are adapted for The feet of a desert tortoise are adapted for

walking in sand.walking in sand.

InferInferApply what you’ve learned…Apply what you’ve learned…

Based on what you know, write in Based on what you know, write in your science journal why it is your science journal why it is important for zoos and animal important for zoos and animal preserves to provide the correct preserves to provide the correct natural habitat for animals?natural habitat for animals?

Answer…Answer…

Animals have physical and Animals have physical and behavioral adaptations that let them behavioral adaptations that let them survive in their natural habitats. If an survive in their natural habitats. If an animal is not placed in a habitat like animal is not placed in a habitat like its natural habitat, then it might not its natural habitat, then it might not survive.survive.

(Knoxville Zoo)(Knoxville Zoo)

Natural SelectionNatural Selection

Natural Selection is the process in Natural Selection is the process in which surviving individuals pass on which surviving individuals pass on those characteristics best suited to those characteristics best suited to survival in their environment.survival in their environment.

Did you know…Did you know…

Why does the sandpiper have such a Why does the sandpiper have such a long, thin beak?long, thin beak?

Answer…Answer…

According to the theory of natural According to the theory of natural selection, traits that help an animal selection, traits that help an animal survive become more common in the survive become more common in the population. population.

Quick Check:Quick Check:So far I’m learning…So far I’m learning…

To understand the difference To understand the difference between habitats and niches.between habitats and niches.

What animal adaptation is.What animal adaptation is.

Symbiosis = Living TogetherSymbiosis = Living Together

Three types of symbiosis…Three types of symbiosis…

(Or three types of things living together)(Or three types of things living together)

ParasitismParasitism

CommensalismCommensalism

MutualismMutualism

ParasitismParasitism

A hookworm takes blood and A hookworm takes blood and nutrients from its host. It benefits, nutrients from its host. It benefits, and the host is harmed.and the host is harmed.

CommensalismCommensalism

An elf owl makes its nest in a hole in An elf owl makes its nest in a hole in a cactus. The owl benefits, and the a cactus. The owl benefits, and the cactus is not affected.cactus is not affected.

MutualismMutualism

Cleaner shrimp eat parasites Cleaner shrimp eat parasites attached to fish. Both the shrimp and attached to fish. Both the shrimp and the fish benefit from this relationship.the fish benefit from this relationship.

Let’s Review…Let’s Review…

Name the 3 types of Symbiosis…Name the 3 types of Symbiosis…

Answer…Answer…

ParasitismParasitism

CommensalismCommensalism

MutualismMutualism

Let’s ReflectLet’s Reflect

A A natural habitatnatural habitat is the area where is the area where an organism lives. It provides an organism lives. It provides everything the organism needs to everything the organism needs to survive. A niche describes the role of survive. A niche describes the role of an organism in its habitat.an organism in its habitat.

Reflect…Reflect…

AdaptationsAdaptations are traits that help are traits that help organisms survive in their habitat. organisms survive in their habitat. Adaptations can be physical or Adaptations can be physical or behavioral.behavioral.

Reflect…Reflect…

SymbiosisSymbiosis is a close, long-lasting is a close, long-lasting relationship between organisms. The relationship between organisms. The three main types of symbiosis are three main types of symbiosis are parasitism, commensalism, and parasitism, commensalism, and mutualism.mutualism.

Reflect…Reflect…

SymbiosisSymbiosis is a close, long-lasting is a close, long-lasting relationship between organisms. The relationship between organisms. The three main types of symbiosis are three main types of symbiosis are parasitism, commensalism, and parasitism, commensalism, and mutualism.mutualism.

AssessAssessMake sure your science journals are Make sure your science journals are turned in for a grade.turned in for a grade.

On two sticky notes, write one thing you On two sticky notes, write one thing you learned from this lesson, and one thing learned from this lesson, and one thing you are still a little unsure about.you are still a little unsure about.

You will be doing a drawing on You will be doing a drawing on symbiosis that will be due tomorrow. symbiosis that will be due tomorrow. (Listen carefully for directions)(Listen carefully for directions)

Symbiosis DrawingSymbiosis Drawing Title your picture SYMBIOSISTitle your picture SYMBIOSIS

Make sure you draw 3 pictures. One Make sure you draw 3 pictures. One showing Parasitism, one showing showing Parasitism, one showing Commensalism, and one showing Commensalism, and one showing mutualism.mutualism.

Write a sentence completely explaining Write a sentence completely explaining each picture, making sure your picture each picture, making sure your picture clearly defines each type of symbiosis.clearly defines each type of symbiosis.

Congrats!! Now You…Congrats!! Now You…

understand the difference between habitats understand the difference between habitats and niches.and niches.

are able to describe the difference between are able to describe the difference between symbiotic relationships.symbiotic relationships.

understand what an animal adaptation is. understand what an animal adaptation is.

Way to go!!Way to go!!