Exam study unit 1

Question 1

Define and give two examples of abiotic and biotic factors

Answer 1

Abitoc, water, air

Biotic, People, Microbes

Question 2

Define and give two examples of producer and consumer

Answer 2

Producer, Grass, trees

Consumers, Humans, tigers

Question 3

Explain the term bio amplification, explain how the TOP carnivore is affected the MOST by this

Answer 3

Organisms have toxins build up in them causing other animals to have the toxin being built up in them, as it goes on and more toxin gets built up.

Question 4

Give an example of a food web, what would happen if one organism was removed?

Answer 4

If an organisms was removed the flow of energy would be disrupted causing any animal that relied on it to die.

Grass, grasshopper, mice, worm, robin, snake ,frog, hawk

Question 5

What is the carbon cycle related to photosynthesis and cellular respiration.

Answer 5

While cellular respiration releases carbon dioxide into the environment, photosynthesis pulls carbon dioxide out of the atmosphere.

Question 6

Define carrying capacity

Answer 6

The number of organisms an ecosystem can support

Question 7

What are 3 human impacts on ecosystems, and how does each one affect biodiversity?

Answer 7

Cars, global warming

plastic production, pollution

Urban sprawl, dispersing animals roved of ecosystem.