B17 - Organise an Ecosystem

Question 1

how can feeding relationships within a community be presented

Answer 1

food chains

Question 2

what do all food chains begin with and what is the cycle

Answer 2

producer - synthesises molecues that are eaten by primary consumers, which secondary consumer consums and then tertiary consumer

example: green plant, alga

Question 3

what do consumers do

Answer 3

kill and eat other animals (predators) and those eaten are prey

Question 4

what is the water cycle

Answer 4

continually occuring chain of evaporation and precipitation that allows the water on earth to be constantly recycled and provides water to the plants and animals living on land

Question 5

what does the carbon cycle show

Answer 5

how carbon is cycled between organisms and the atmosphere

Question 6

what is the method of the carbon cycle

Answer 6

1. carbon is returned to the atmosphere as carbon dioxide when living organisms respire
2. this includes respiration by microorganisms which decay dead plants and animals
3. this carbon dioxide can be used by the plants in photosynthesis to make new biological molecues (carbs,fats,proteins)

Question 7

what cycles through abiotic and biotic components of an ecosystem

Answer 7

many materials