Repeating Ecology

Repeating!
Chapter 6 The ecology part
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Repeating!
Chapter 6 The ecology part

Slide 1 - Diapositive

Ecology
         The study between organisms and their environment

Slide 2 - Diapositive

Abiotic and biotic factors
Abiotic factors = non-living aspects of nature
(And all abiotic factors together in an area is called a biotope)

Biotic factors = living aspects of nature

Slide 3 - Diapositive

Slide 4 - Diapositive

After a rain shower, you often see earthworms crawling up out of the soil. Do earthworms come up out of the soil because of a change in a biotic or an abiotic factor?
A
Change in biotic factor
B
Change in abiotic factor

Slide 5 - Quiz

On the savannah, kudus (see picture) are hunted by jaguars and lions. What kind of factor is a lion?
A
A biotic factor
B
An abiotic factor

Slide 6 - Quiz

Name at least three biotic factors that you can find around your house.

Slide 7 - Question ouverte

Name at least three abiotic factors that you can find around your house.

Slide 8 - Question ouverte

Levels of ecology
Individual (organism)

Population

Community

Ecosystem

Slide 9 - Diapositive

How do we call everything in this aquarium together?
A
A population
B
A community
C
An ecosystem
D
A biotope

Slide 10 - Quiz

Bart is researching the forest in Hilversum. He researches the temperature, rainfall and CO2 concentration throughout the year. What is he researching?
A
A population
B
A community
C
An ecosystem
D
A biotope

Slide 11 - Quiz

There are a lot of rabbits that live on Vlieland and Texel. Are those rabbits from the same population? Explain your answer.

Slide 12 - Question ouverte

Slide 13 - Diapositive

Pyramid of numbers:
  • The amount of individual organisms in the community reflected in a pyramid.
  • Each trophic level of a food chain is represented with a bar. 
  • The amount of individuals in each trophic leel is represented by the size of the bar. 

Slide 14 - Diapositive

Pyramid of biomass:
  • The total biomass of all organisms in the community reflected in a pyramid.
  • The total bimass of each trophic level of a food chain is represented with a bar. 
  • The amount organisms in each trophic level is multiplied by the mass of each individual to get the biomass.

Slide 15 - Diapositive

Food chains and food webs
Food chain = a diagram showing who eats who.
Food web = multiple food chains that are connected.

Rules of food chains and webs:
  1. You always start with plants.
  2. Arrows mean 'is eaten by' ->

Slide 16 - Diapositive

Food chains and food webs
Example of a food chain

Slide 17 - Diapositive

Food chains and web
Example of a food web

Slide 18 - Diapositive

How many different species does the mountain lion eat according to this food web?
A
1
B
2
C
3
D
4

Slide 19 - Quiz

Food chains and food webs
Food chains and food webs have different groups of species:
  1. Producers - organisms that produce their own energy
  2. Herbivores - plant eaters
  3. Carnivores - meat eaters
  4. Omnivores - plant and meat eaters

Slide 20 - Diapositive

How many omnivores are in this food web? Give the name(s) of the organism(s).

Slide 21 - Question ouverte

Why is it always producers that are at the start of a food chain / food web?

Slide 22 - Question ouverte

Why are decomposers important?

Slide 23 - Question ouverte

What is another term used for decomposers?

Slide 24 - Question ouverte

Which organism(s) is/are producers in this food web?

Slide 25 - Question ouverte