Communities LOW STAKES QUIZ You now need to do the

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Description: Communities LOW STAKES QUIZ You now need to do the low stakes quiz on Google Forms that goes with this lesson Learning Objectives To explain how one species depends on another for survival To define biotic and abiotic factors To explain how

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slide1. Communities<br>
slide2. LOW STAKES QUIZ You now need to do the low stakes quiz on Google Forms that goes with this lesson<br>
slide3. Learning Objectives To explain how one species depends on another for survival
To define biotic and abiotic factors
To explain how populations can be affected by different factors<br>
slide4. Interdependence INPUT: KEY TERMS
Habitat: area in which organisms live

Population: number of organisms of a certain species

Community: two or more populations living in the same habitat

Ecosystem: combination of organisms and factors within a habitat

Interdependence: interactions between organisms<br>
slide5. Interdependence FLUENCY: KEY TERMS
Habitat:

Population:

Community:

Ecosystem :

Interdependence:

number of organisms of a certain species

interactions between organisms

two or more populations living in the same habitat

area in which organisms live

combination of organisms and factors within a habitat<br>
slide6. Interdependence FLUENCY: KEY TERMS
Habitat: (d)area in which organisms live

Population: (a) number of organisms of a certain species

Community: (c) two or more populations living in the same habitat

Ecosystem : (e) combination of organisms and factors within a habitat

Interdependence: (b) interactions between organisms<br>
slide7. Interdependence FLUENCY: DEFINE KEY TERMS
Habitat:

Population:

Community:

Ecosystem:

Interdependence:<br>
slide8. Interdependence FLUENCY: DEFINE KEY TERMS
Habitat: area in which organisms live

Population: number of organisms of a certain species

Community: two or more populations living in the same habitat

Ecosystem: combination of organisms and factors within a habitat

Interdependence: interactions between organisms<br>
slide9. INTERDEPENDENCE INPUT:
Organisms within an ecosystem are dependent on each other for food but also for reproduction
Organisms within an ecosystem are in competition with one another for resources including food/mineral ions, water, space<br>
slide10. FLUENCY:
Label each organism
with the correct label
or labels:
Predator
Prey
Consumer
Producer
Carnivore
Herbivore
Omnivore INTERDEPENDENCE<br>
slide11. FLUENCY:
Predator: rat, python, wolf, eagle, thrush, frog, dragonfly
Prey: rat, python, wolf, thrush, frog, grasshopper, dragonfly, butterfly, fruit fly
Consumer: rat, python, wolf, thrush, frog, grasshopper, dragonfly, butterfly, fruit fly, eagle
Producer: corn, flowering plant, lavender, mango
Carnivore: rat, python, wolf, eagle, thrush, frog
Herbivore: grasshopper, dragonfly, butterfly, fruit fly
Omnivore: (rat, frog, thrush) INTERDEPENDENCE<br>
slide12. Biotic & Abiotic Factors INPUT:
A stable community is one where all the species and environmental factors are in balance, so population sizes remain fairly constant
E.g. the school field

There are many factors that can effect this stability

Eg rainfall, temperature, light intensity, disease<br>
slide13. Biotic & Abiotic Factors INPUT:
Biotic = living factors that can affect a community
New predators
Competition
New pathogen
Availability of food<br>
slide14. Biotic & Abiotic Factors INPUT:
Abiotic = non-living factors that can affect a community
Moisture levels
Light intensity
Temperature
CO2 levels (plants)
Wind intensity and direction
O2 level (aquatic animals)
Soil pH
Soil mineral content<br>
slide15. Biotic & Abiotic Factors FLUENCY: copy out this list and put an A or B next to each one to indicate if it is a biotic or abiotic factor
Light intensity
Temperature
Competition
CO2 levels (plants)
Availability of food
O2 level (aquatic animals)
Soil pH
Soil mineral content
Moisture levels
New predators
Wind intensity and direction
New pathogen<br>
slide16. FLUENCY:
A farmer is concerned about grasshoppers eating her corn plants. She introduce a breed of toad from America which is known to feed on grasshopper describe three effect this may have on the populations within this ecosystem. BIOTIC FACTORS<br>
slide17. FLUENCY:
Grasshopper numbers will fall
Corn plant numbers could rise
Frog and rat numbers could fall
Butterfly, fruit fly and dragonfly numbers could fall as frogs are forced to hunt more of those instead of grasshoppers BIOTIC FACTORS<br>
slide18. Communities Fluency: Exam question<br>
slide19. Communities Fluency: Exam question<br>
slide20. Communities Fluency: Exam question<br>
slide21. Communities Fluency: Exam question<br>
slide22. EXIT TICKET You now need to do the exit ticket task on Google Forms that goes with this lesson<br>