ESS

Question 1

What are trophic levels?

Answer 1

Any sequential stages in a food chain, occupied by primary,secondary,tertiary or quaternary

Question 2

Describe a Food Chain

Answer 2

Explains when organisms ( living things ) eat other organisms.

Question 3

What is DDT?

Answer 3

Pestidices used for killing species. Used in agriculture

Question 4

What is bioaccumulation?

Answer 4

Accumulation ( Increase in concentration in just 1 ) of a substance inside an organism of water and food.

Question 5

Define biomagnification

Answer 5

An increase in LEVEL as one moves higher in the food chain

Question 6

Give an example of how DDT can enter and impact food chains.

Answer 6

DDT enters a food web AT THE LOWEST LEVEL when small organisms like insects eat part of a plant infected with this toxic substance.

Question 7

Define predator

Answer 7

an animal that lives by killinh and eating other animals

Question 8

Define prey

Answer 8

an animal that is hunted and killed by another animal.

Question 9

What are keystone species

Answer 9

Important and KEY species

Question 10

What is a succession?

Answer 10

Is the process of change over time in an ecosystem involving pioneer.

Question 11

What is the relationship between succession and species diversity?

Answer 11

Species diversity increase with succession, and this relationship is important for conserving large areas of old-growth habitats.

Question 12

What can you do to stop biassed results?

Answer 12

Multiple people, Participants review results, Verify with more data sources.

Question 13

What is resilience?

Answer 13

Process and outcome of successfully adapting to difficult or challenging life experiences, especially through mental, emotional, and behavioral flexibility and adjustment to external and internal demands.

Question 14

Which biomes are generally more resilient?

Answer 14

Rainforests

Question 15

What is productivity?

Answer 15

The state or quality of producing something.

Question 16

What is disturbance?

Answer 16

The act of disturbing someone or something

Question 17

What is regeneration?

Answer 17

Natural process of replacing or restoring damaged or missing cells, tissues, organs, and even entire body parts to full function in plants and animals.

Question 18

Describe a positive feedback mechanism.

Answer 18

When an ecosystem can’t go back to equilibrium after disturbance (destabilizer)

Question 19

Describe a negative feedback mechanism.

Answer 19

When an ecosystem can go back to equilibrium after disturbance (stabilizes)

Question 20

List some organisations that work in conservation.

Answer 20

WWF and Greenpeace

Question 21

How can feedback mechanisms maintain stability in a threatened ecosystem?

Answer 21

They will help stabilize the threatened ecosystem as it stabilizes and destabilizes an ecosystem

Question 22

What are the different environmental value systems? How can culture influence them?

Answer 22

Ecocentric, anthopocentric, technocentric

Question 23

What is the water cycle?

Answer 23

Flow in energy, diagram

Question 24

How can humans interfere with the water cycle?

Answer 24

Urbanization, building roads and buildings –> increase surface runoff and less infiltration since there is less soil to infiltrate.
Deforestation –> increase in surface runoff as there is less inflitration}
agricutlire -> soil is unable to infiltrate water so increase surface runoff

Question 25

What is water stress?

Answer 25

Not enough water to demand the whole population

Question 26

What is water scarcity?

Answer 26

Lack of water in a certain area, or not having access to a water supply

Question 27

Describe what happened in one location to cause conflicts over water resources.