6.3 living together

• Biologie
• Middelbare school
• vmbo k, g, t
• Leerjaar 2

start task 

6.3 living together

1. Copy the learning goals to your zuidschrift (pp. 222)
2. Join this LessonUp

Learning goals: after this lesson you can

- explain what a biological equilibrium is.

- explain how species depend on each other for food, shelter and reproduction.

planning

1. recap 6.1 + 6.2 in LessonUp quiz
2. video + notes 6.3
3. (home)work
4. hand in you homework assignment

Abiotic factors

Biotic factors

A food chain is

1. a row of organisms that eat each other
2. a cosy table with food in a row
3. a row of organisms that shows who gets eaten by whom
4. a chain with food on it, like in a game where you bite hanging cookies

What does an arrow in a food chain mean?

1. Eat
2. Lives together with
3. Is eaten by
4. Hunts together with

You can see a food chain here.
Is this food chain shown correctly?

1. Ja
2. Nee

What are producers?

1. Plants
2. Animals
3. Fungi
4. Bacteria

What are consumers?

1. Plants
2. Animals
3. Fungi
4. Bacteria

What are breakdown agents (reducers)?

1. Plants
2. Animals
3. Fungi
4. Bacteria

What is the 'order' of the cycle in nature?

1. Producers- Breakdown agents- Consumers
2. Producers- Consumers- Breakdown agents
3. Consumers- Producers- Breakdown agents
4. Breakdown agents - Consumers- Producers

Carbon cylce

Nutrient cycle

Carbon cylce pp 194!

photosynthesis

respiration

carbon from the air

glucose

energy-rich substances in animals

dead remains of plants

fungi and bacteria

pen & zuidschrift ready 

laptop closed

What is this Basics section about?

• Equilibrium
• Coexistence
• Relationships within a population
• Relationships between species

Population

population: a group of organisms of the same species in a certain area.

e.g. all oak trees in a forest, all dogs in Enschede, all brimstone butterflies in Overijssel.

Population size

Population size: the exact number of individuals.

It changes with the seasons.

e.g. More wasps in summer than in winter. 

More oak trees in a wet year than in a dry year.

6.3 Samenleven

Equilibrium

biological equilibrium: average population size over several years (graph)

= influenced by abiotic and biotic factors.

Each organism has relationships with members of the same species.

Rabbits live together in a burrow and have babies together.

Or they fight each other for food.

That is also a relationship.

coexistence

Competition: fighting for the same food, space, females, etc.

Cooperation: animals help each other (e.g. lions hunting together)

Relationships within one species (population)

Hierarchy: who is the boss? (e.g. elephants)

Territory: area that animals defend

Pairing: male & female take care of their young together (e.g. swans)

Relationships between species

Symbiosis = long-term cooperation between species:

🟢 Mutualism: both benefit (e.g. alga + fungus)

🟡 Commensalism: one benefits, the other is unaffected 

(e.g. bird + tree)

🔴 Parasitism: one benefits, the other is harmed 

(e.g. tick on human)

symbiose

De alg doet aan fotosynthese.

Zo maakt hij voedsel voor de schimmel.

De schimmel zorgt voor water. Ook maakt hij een beschutte plek voor de alg.

Twee organismen van verschillende soorten leven zo langdurig samen.

Deze relatie heet symbiose.

Voordeel		Voordeel
Neutraal		Neutraal
Nadeel		Nadeel

Een langdurige samenlevingsvorm noemen we symbiose

Put the different types of behaviour in the correct column.

Cooperation

Competition

territorial behaviour

pairing

symbiosis

Parasitism

Both species benefit from the symbiosis

One species benefits and the other is not harmed

One species is harmed, and the other benefits

Commensalism

Parasitism

Mutualism

Symbiosis

What	Do exercises 1-3 and 5-8 (pp 205-207)
How
Help	.
Done?	Check and correct (Classroom). Test yourself + flashcards BvJ online.

1. Book: Use the text and images from pages 202-204
2. Neighbour
3. Teacher

You may quietly work together with your neighbour.

Conversations be about the exercises.

Learning goals: after this lesson you can

- explain what a biological equilibrium is.

- explain how species depend on each other for food, shelter and reproduction.

Check-uit

vraag 1)

Commensalisme

Parasitisme

Interspecifieke concurrentie

Intraspecifieke concurrentie

Mutualisme

Check-uit vraag 2)
Bekijk de grafieken 1, 2 en 3.
Noteer de juiste samenlevingsvorm.

Biotische factor

Abiotische factor

Prooien

Mineralen

Atmosfeer

Licht

Symbiose

Ziekteverwekker

Vegetatie om in te schuilen

Rotsspleten om in te schuilen

De accumulatie van persistente giffen in de voedselketen heeft vaak tot gevolg dat...

1. de dieren onderaan de voedselketen het meeste gif in hun lichaam hebben
2. de dieren bovenaan de voedselketen het meeste gif in hun lichaam hebben
3. overal in de voedselketen de dieren ongeveer evenveel gif in hun lichaam hebben.

	+	+
	+	-
	+	0

Symbiose is een ______________   relatie tussen 2 verschillende soorten

Gastheer

Kortdurige

Langdurige

Parasitisme

Communisme

Commensalisme

Mutualisme

Cultisme

Gast

Deze symbiose is...

1. Mutualisme
2. Parasitisme
3. Commensalisme

Wat is geen vorm van symbiose?

1. Parasitisme
2. Commensalisme
3. Predator-prooi relatie
4. Mutualisme

Deze symbiose is...

1. Mutualisme
2. Parasitisme
3. Commensalisme
4. Predatie

Deze symbiose is...

1. Mutualisme
2. Parasitisme
3. Commensalisme
4. Geen symbiose, maar predatie