GMAS Practice Question Organisms that share a trophic level are: Elephants and lions Cheetahs and giraffes Chipmunks and squirrels Wolves and sparrows

look at) the dependence (reliance) of organisms (any Standard S7L4 Students will examine (study; look at) the dependence (reliance) of organisms (any living thing) on one another and their environments (surroundings; locations).

How does energy decrease as it moves through an ecosystem? ESSENTIAL QUESTION How does energy decrease as it moves through an ecosystem?

Energy Pyramid Energy pyramid: A model used to show the amount of energy available to living things in an ecosystem.

Label the pyramid with the four (4) trophic levels

Fourth trophic level Third trophic level Second trophic level Label the pyramid with the four (4) trophic levels Fourth trophic level Third trophic level Second trophic level First trophic level

Label the pyramid with the main source of energy for the food chain

Label the pyramid with the main source of energy for the food chain First trophic level Producers :make their own food through photosynthesis; main source of energy is the sun

Label the pyramid with the three (3) types of consumers Fourth trophic level Third trophic level Second trophic level

Label the pyramid with the three (3) types of consumers Fourth trophic level carnivore Third trophic level carnivore or omnivore Second trophic level herbivore or omnivore First trophic level Producers :make their own food through photosynthesis; main source of energy

Label the parts of the pyramid that are consumers and that part that is the producer Fourth trophic level Carnivore Decomposers and scavengers (saprophytes) heterotrophs Third trophic level carnivore or omnivore Second trophic level herbivore or omnivore First trophic level Producers :make their own food through photosynthesis; main source of energy autotroph

Label the parts of the pyramid with the levels of consumers Fourth trophic level Carnivore Decomposers and scavengers (saprophytes) heterotrophs Third trophic level carnivore or omnivore Second trophic level herbivore or omnivore First trophic level Producers :make their own food through photosynthesis; main source of energy autotroph

Label the parts of the pyramid with the levels of consumers Do not write Fourth trophic level Carnivore Decomposers and scavengers (saprophytes) *Third-level or tertiary consumer Third-level consumer heterotroph Second-level consumer Third trophic level carnivore or omnivore *Second-level or secondary consumer First-level consumer Second trophic level herbivore or omnivore *First-level or primary consumer First trophic level Producers :make their own food through photosynthesis; main source of energy autotroph

Label the parts of the pyramid with the levels of consumers Number of organisms and energy decrease as you move up the energy pyramid 10% is passed to the next trophic level Fourth trophic level Carnivore Decomposers and scavengers (saprophytes) *Third-level or tertiary consumer heterotroph Third trophic level carnivore or omnivore *Second-level or secondary consumer Second trophic level herbivore or omnivore *First-level or primary consumer First trophic level Producers :make their own food through photosynthesis; main source of energy autotroph

Complete all trophic levels to show 10% energy being passed on to the next level 100,000 kcal

100 kcal 1,000 kcal 10,000 kcal 100,000 kcal

Complete all trophic levels to show a 10% decrease in energy (energy loss) 125,000 kcal

125 kcal 1,250 kcal 12,500 kcal 125,000 kcal

Shade the pyramid to show the decrease of energy as matter is transferred (page 492)

Complete all trophic levels to show a 10% decrease in energy (energy loss) 17,500 kcal

17.5 kcal 175 kcal 1,750 kcal 17,500 kcal