How to use the resources• This PowerPoint is very similar to ones we use in lessons

with additional teaching points to help you.• Use pages 86-87 in your revision guide to help you.• Work through the information on the slides (making

notes if students would like) and complete the activities in the order it states on the PowerPoint. Complete the booklet as you work through the PowerPoint.

• Use learning objective sheet like we do in lessons ticking off the activities as you go (if you feel this helps)

• Look out for all the useful video clips• Complete exam style questions once you have worked

through the information and activities to check your understanding. These are at the back of the booklet in purple.

Ecosystems and Adaptations

Wednesday, 03 June

2020

Key words:Ecosystem, community, population, competition, habitat, interdependence, stable

StarterState 3 factors that can cause an organism to become extinct.

EcosystemsWednesday,

03 June 2020Key words:

Ecosystem, community, population, competition, habitat, interdependence, stable

StarterState 3 factors that can cause an organism to become extinct.• Ice age• Flooding• Drought • New predator• New disease

Learning Outcomes

❑Describe the different levels of organisation in an ecosystem

❑ Explain how certain adaptations help organisms to survive in their environments and interpret predator-prey graphs and populations

❑ Describe some of the techniques used by scientists to study ecosystems.

Today we will focus on:

Creative Thinkers

Effective Participators

Reflective Learners

Activity Tick when done

Date written and underlined

Recap extinction

Understand levels of organisation in an ecosystem (Q1-11)

Adaptations and Predator-Prey relationships (Q12-18)

Studying Ecosystems (Q19)

Exam style questions

Approach to learning and SPLATS

Habitat

Elephants living in the Africa grasslands

1 and 2. Habitat

The habitat is the environment in which an organism lives.

Habitat

Thousands of elephants live in these grasslands

3. Population

• A population is the total number of organisms of the same species living in the same area

Who else lives here?

As well as elephants, what other animals live in the grasslands of Africa?

Zebras Giraffes Gazelles

Anything other than animals?

• Insects

• Plants

• Bacteria

• Fungi

4. Community

All these organisms living together in the same habitat is called a community

A community is populations of all the different species that live in the same

environment

5. Is there anything else?

Are there any non-living parts of this habitat?

Living factors = Biotic

Non-living factors = Abiotic

https://www.youtube.com/watch?v=kIfMwZU8nk4

Biotic (Living)Abiotic (Non-

living)

Biotic (Living)Abiotic (Non-

living)

New pathogens or parasites Light intensity

Temperature

Moisture levels

Soil pH

Wind intensity

Availability of food

New predators

Increase in competition

Availability of a mate

6. What is an ecosystem?

An ecosystem is all living and non-living things in a habitat.

Recap different levels of an Ecosystem so far

• Individual organisms

• Populations – groups of individuals of the same species

• Communities – made up of many populations living together

7. Competition

Resources are in short supply…

When two or more individuals share any resource (e.g light, food, space) that is

insufficient to satisfy all of their requirements fully, then competition

results.

https://www.youtube.com/watch?v=ePsjdKoSA9g&list=PL9IouNCPbCxVuf3dVIq6kHQ0b27Hu-fgW

8. What do organisms compete for?

PlantsAnimals

What do organisms compete for?

PlantsAnimals

A mate

Food

Territory

Light

Water

Space

Nutrients from the soil

9. Competition

Watch the 2 David Attenborough clips

Name of organism

What it is competing for

How it competes successfully

Clip 1:

Clip 2:

Clip 1 - http://www.youtube.com/watch?v=igkjcuw_n_U

Clip2 - https://www.youtube.com/watch?v=sm11C8l9Xwk

10. Interdependence

• As well as competing with each other, species depend/rely on each other for food, shelter, pollination etc.

• Every animal depends on other living organisms for food

(E.g. lions eat animals such as zebras and gazelles. Zebras get their food from eating plant material)

Interdependence

What is this lion relying on this tree for?

Interdependence

What is this plant relying on this bee to do?

Effects

• If a species disappears from a community then this can affect the whole community

• For example, without bees, lots of different plants would not get pollenated and would be unable to reproduce so numbers would decrease

• Animals that ate these plants would have less food so their numbers would decrease

11. Stable community

• In a stable community, the populations of organisms are in balance with each other and with the abiotic (non-living) resources such as water.

Learning Outcomes

❑Describe the different levels of organisation in an ecosystem

❑ Explain how certain adaptations help organisms to survive in their environments and interpret predator-prey graphs and populations

❑ Describe some of the techniques used by scientists to study ecosystems.

Activity Tick when done

Date written and underlined

Recap extinction

Understand levels of organisation in an ecosystem (Q1-11)

Adaptations and Predator-Prey relationships (Q12-18)

Studying Ecosystems (Q19)

Exam style questions

Approach to learning and SPLATS

• These are special features that allow organisms to survive and be more successful in their habitat.

• https://www.youtube.com/watch?v=KvK7EJimAH8&list=PL9IouNCPbCxVuf3dVIq6kHQ0b27Hu-fgW&index=3

Q. What resources might organisms be competing for?

12. What are adaptations?

Q. What resources might organisms be competing for?

12. What are adaptations?

13. Adaptations of a camel

• What adaptations does a camel have?

13. Adaptations of a camel

• What adaptations does a camel have?

✓Fat in their humps✓Wide feet✓ Long eyelashes✓ Concentrated urine✓ Do not sweat

Q. What is the benefit of each adaptation?

14. Adaptations of a shark

• Labels the adaptations that a shark has.• Give a reason for each adaptation!• Complete the challenge task.

14. Adaptations of a shark

• https://www.youtube.com/watch?v=9bExFvhl-H4

• https://www.youtube.com/watch?v=yp9YKEO9e1w

15. Structural, behavioural or functional?

• Adaptations are usually grouped into three different categories:

• Behavioural – how they behave

• Structural – parts of the body

• Functional – the way the body works

Q. Complete the tables for the adaptations of camels and sharks. Are they behavioural, structural or functional?

15. Structural, behavioural or functional?

Q. Complete the tables for the adaptations of camels and sharks. Are they behavioural, structural or functional? - Camels

Adaptation Structural (S), Behavioural (B) or Functional (F)?

Fat in their humps

Wide feet

Long eyelashes

Concentrated urine

Do not sweat

15. Structural, behavioural or functional?

Q. Complete the tables for the adaptations of camels and sharks. Are they behavioural, structural or functional? - Camels

Adaptation Structural (S), Behavioural (B) or Functional (F)?

Fat in their humps S

Wide feet S

Long eyelashes S

Concentrated urine F

Do not sweat F

15. Structural, behavioural or functional?

Q. Complete the tables for the adaptations of camels and sharks. Are they behavioural, structural or functional? - Sharks

Adaptation Structural (S), Behavioural (B) or Functional (F)?

Streamlined body

Hunting at night

Many rows of teeth

Fast swimmer

Aggressive nature

15. Structural, behavioural or functional?

Q. Complete the tables for the adaptations of camels and sharks. Are they behavioural, structural or functional? - Sharks

Adaptation Structural (S), Behavioural (B) or Functional (F)?

Streamlined body S

Hunting at night B

Many rows of teeth S

Fast swimmer F

Aggressive nature B

15. Structural, behavioural or functional?

• Adaptations are usually grouped into three different categories:

• Behavioural – how they behave

• Structural – parts of the body

• Functional – the way the body works

Q. Complete the tables for the adaptations of camels and sharks. Are they behavioural, structural or functional?

16. Extremophiles

• Can you think of any extreme environments in the world where humans would find it hard, or even impossible to survive there?

16. Extremophiles

16. Extremophiles

• These are organisms that can survive in extreme conditions both on land and under the sea.

• They have special adaptations to help them survive and be successful.

Q. Can you think of any examples?

16. Extremophiles

• Tardigrades are microscopic organisms.

• They were blasted into space in 2007 attached to a satellite.

• When they returned it was found that many had survived, and some had even laid eggs that had hatched!

16. Extremophiles• https://www.youtube.com/watch?v=KNlSiE

df-wI

• List three adaptations of the Angler fish.

• How does each one help it do its job?

• Are they behavioural, structural or functional adaptations?

• Q. Why don’t we know much about Angler fish?

16. Extremophiles ler fish

Adaptation How does it help survival?

Structural (S), Behavioural (B) or Functional (F)?

Bright light

Fast swimmer

Long sharpteeth

16. Extremophiles Angler fish

Adaptation How does it help survival?

Structural (S), Behavioural (B) or Functional (F)?

Bright light Lure prey S & B

Fast swimmer Help to catch prey

F

Long sharpteeth

Help to graspand eat prey

S

17 . Predator-prey populations

• There are many different predator-prey relationships.

• Their population sizes directly affect each other amongst other factors.

• https://www.youtube.com/watch?v=dRFQ8rZCK6Q&list=PL9IouNCPbCxVuf3dVIq6kHQ0b27Hu-fgW&index=4

17 . Predator-prey populations

• https://www.youtube.com/watch?time_continue=89&v=DQMby-ZhRxE

18. Predator – prey roulette

• Complete the details for your favouritepredator and its prey.

• Look at the scenarios and decide if the outcome will be positive or negative towards your favourite predator!

https://www.classtools.net/random-name-picker/15_CZFVLW

Learning Outcomes

❑Describe the different levels of organisation in an ecosystem

❑ Explain how certain adaptations help organisms to survive in their environments and interpret predator-prey graphs and populations

❑ Describe some of the techniques used by scientists to study ecosystems.

Activity Tick when done

Date written and underlined

Recap extinction

Understand levels of organisation in an ecosystem (Q1-11)

Adaptations and Predator-Prey relationships (Q12-18)

Studying Ecosystems (Q19)

Exam style questions

Approach to learning and SPLATS

19. Studying Ecosystems

• A group of organisms of one species (E.g. daisies) living in a habitat is called a population

• To estimate the size of the population scientists can use a quadrat

19. Studying Ecosystems

• You are going to randomly drop a hoop on the grass and record the amount of daisies there are each time.

• You will then produce a mean/average of your results.

Test 1

Test 2

Test 3

Test 4

Test 5

Test 6

Test 7

Test 8

Test 9

Test 10

Mean

Required practical - sampling

• Freesciencelessons: https://www.youtube.com/watch?v=yLHz2Ea10Mg

• Required practical: https://www.youtube.com/watch?v=RhMOCxXcDrQ

Learning Outcomes

❑Describe the different levels of organisation in an ecosystem

❑ Explain how certain adaptations help organisms to survive in their environments and interpret predator-prey graphs and populations

❑ Describe some of the techniques used by scientists to study ecosystems.

Activity Tick when done

Date written and underlined

Recap extinction

Understand levels of organisation in an ecosystem (Q1-11)

Adaptations and Predator-Prey relationships (Q12-18)

Studying Ecosystems (Q19)

Exam style questions

Approach to learning and SPLATS

20. Exam Style Questions

Listen to the reader and ask to be repeated if required

1 mark = 1 point

Mark in red pen

Activity Tick when done

Date written and underlined

Recap extinction

Understand levels of organisation in an ecosystem (Q1-11)

Adaptations and Predator-Prey relationships (Q12-18)

Studying Ecosystems (Q19)

Exam style questions

Approach to learning and SPLATS

Learning Outcomes

❑Describe the different levels of organisation in an ecosystem

❑ Explain how certain adaptations help organisms to survive in their environments and interpret predator-prey graphs and populations

❑ Describe some of the techniques used by scientists to study ecosystems.

Did we achieve our focus:

Creative Thinkers

Effective Participators

Reflective Learners

Activity Tick when done

Date written and underlined

Recap extinction

Understand levels of organisation in an ecosystem (Q1-11)

Adaptations and Predator-Prey relationships (Q12-18)

Studying Ecosystems (Q19)

Exam style questions

Approach to learning and SPLATS

Parents/carers: how did they get on?

• Please let us know how students got on with that lesson and if they need any further help with the work.

• Please let us know if anything was unclear about the layout of the lesson so we can change and make it clearer for their next lesson.

• Please, if you can, send us students work via email for us to mark and so we can provide feedback.

• Mr Walker: jwalker@corley.coventry.sch.uk• Mrs White: zwhite@corley.coventry.sch.uk