1) What do the arrows in a food chain show? a) The transfer of biomass b) What eats what c) How many organisms are at each trophic level 2) What is an omnivore? a) An organism which eats only meat b) An organism which eats meat and plants c) An organism which eats only plants 3) What must be true of a primary consumer? a) It eats meat and plants b) It eats secondary consumers c) It eats plants 4) What must be true about the bars on a pyramid of biomass? a) They decrease in size up the pyramid b) They must have a big bar at the top for parasites c) They must have a small bar at the bottom representing a tree 5) What proportion of energy biomass is transferred between trophic levels? a) 100% b) 90% c) 10% 6) Approximately 1% of the sun's energy reaching the plant is used to increase the plants biomass. Why? a) Light falls on parts which do not contain chlorophyll b) Light falls on parts which do not contain mitochondria c) Some of the light is reflected by the plant d) The leaves absorb lots of energy 7) Which of these is NOT true when drawing pyramids of biomass? a) Producer at the top b) Bars equally spaced around the midpoint c) Bars touching d) It is always a true pyramid shape

Biomass Transfer

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