How changes affect ecosystem and Pond ecosystem

Question 1

How does change affect ecosystem?

Answer 1

For an ecosystem to be sustainable, it needs to be in balance. If the ecosystem changes quickly, it might have an knock on effect on the ecosystem.

Question 2

List 2 Physical Changes towards ecosystem!

Answer 2

1. Volcano Eruption
2. Tornado

This is just 2 examples!

Any valid answers will be accepted!

Question 3

List 2 human changes towards ecosystem

Answer 3

1. Deforestation
2. Introducing non nature species.

Question 4

List 5 major parts of small scale pond ecosystem

Answer 4

1. Above pond water surface
2. Pond water surface
3. Pond margin
4. Mid water depth
5. Pond bottom

Question 5

Ecosystem in above pond water surface

Answer 5

Birds and animals breathe
oxygen. Food are found in/ on water or in margins

Question 6

Ecosystem in pond water surface

Answer 6

Plenty of oxygen or light. Animals breathe through gills or lungs.

Question 7

Ecosystem in pond margin

Answer 7

Plenty of shelter for plants and insects, for small animals to eat.

Question 8

Ecosystem in mid water depth

Answer 8

Animals breathe through gills or skin. Fish main predators. Food are found on surface or in pond.

Question 9

Ecosystem in pond bottom

Answer 9

Little oxygen or light. Plenty of shelter. Decomposer live here.

Question 10

Nutrient cycle of pond ecosystem

Answer 10

Fish eat food > uneaten food is decomposed by fungi and bacteria (anaerobic) > creates ammonia > oxidation by nitrifying bacteria (aerobic) > nitrates absorbed by plants