Introduction to Ecosystems

Question 1

What are ecosystems?

Answer 1

they are dynamic - they are changing constantly - the abundance and
distribution of organisms are controlled by biotic (living) and abiotioc (non-living)
factors

Question 2

What is a population?

Answer 2

all organisms of a single species in a habitat

Question 3

What is a community/

Answer 3

all the organisms of all the species in a habitat

Question 4

What is a habitat?

Answer 4

the place where an organism lives

Question 5

What is a niche/

Answer 5

the role of a species in an ecosystem - each species does different things

Question 6

What is a trophic level?

Answer 6

each stage of the food chain e.g. producers -> primary consumer -> secondary consumer

Question 7

What are the biotic and abiotic of rock pool?

Answer 7

• biotic - intraspecific competition e.g. seaweeds compete for light/nutrients
  abiotic - ,temp, water depth, sunlight

Question 8

What are the biotic and abiotic factors of playing field?

Answer 8

• biotic - interspecific competition - producers will compete for resoucres e.g. grass, daisies,
  consumers eat producers
• abiotic - rainfall, temperature, sunlight

Question 9

What are the biotic and abiotic factors of large tree?

Answer 9

• biotic - insect eat leaves, birds eat insects

abiotic - rainfall / fire