Ecology 6,3

• Biologie
• Middelbare school
• havo
• Leerjaar 2

Today's lesson

Review food webs, chains, and feeding relationships

Discuss the water and carbon cycle

WHICH OF THESE TERMS CONTAIN BOTH BIOTIC AND ABIOTIC FACTORS.

1. COMMUNITY
2. POPULATION
3. BIOTOPE
4. ECOSYSTEM

Recall MRSGREN

How many different species does the mountain lion eat according to this food web?

1. 1
2. 2
3. 3
4. 4

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

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

Nutrient cycle

A nutrient cycle shows the route of nutrients through nature. It is always in a cycle.

Decomposers make a food web into a nutrient cycle.

Nutrient cycle

6,3 Cycles

In an ecosystem, every substance goes through it's own cycle.

Water cycle

Carbon cycle

Nitrogen cycle

Evapotranspiration

The carbon cycle

The carbon cycle

Take a look at the picture. Is this a food web or a nutrient cycle? Explain your answer.

To do

Read paragraph 6,3

Do Qs. 11 t/m 14