energy flow and nutrient cycles
Quiz by Heather Hawk
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25 questions
Show answers
- Q1Why do predators need plants in their ecosystem?Plants are producersPredators do not need plantsPlants catch food for predatorsPredators provide food for the plants30sEditDelete
- Q2_____ break down the waste and the remains of dead organisms and return nutrients to the soil.DecomposersProducersScavengersConsumers30sEditDelete
- Q3Carnivores are animals that eat only _____________.vegetablesproducersplantsherbivores30sEditDelete
- Q4A tadpole, a water beetle, and a snail are all examples of what level of consumers?Secondary ConsumersTertiary ConsumersProducersPrimary Consumers30sEditDelete
- Q5Decomposers help which organism the most with the products they create by breaking down dead organisms or waste?Primary ConsumersTertiary ConsumersSecondary ConsumersProducers30sEditDelete
- Q6What do the arrows in a food chain show?how many different organisms an organism eatshow energy flows through an ecosystemwhich organism eats which organismwhere organisms live30sEditDelete
- Q7Describe the relationship between bacteria and humans.They are always harmfulThey are always helpfulHumans do not use or need bacteriaThey can help and harm30sEditDelete
- Q8In the food web below, which organism receives the least amount of total energy?FoxMiceGrassGrasshopper30sEditDelete
- Q9In this food web, which organism receives the most total energy? Carrots, Rabbits, birds, or owl?OwlBirdsCarrotsRabbits30sEditDelete
- Q10Which food chain is included in the food web above?fox, rabbit, carrotcarrots, mice, foxgrass, grasshopper, foxGrains, grasshopper, bird, fox30sEditDelete
- Q11In the food web above, what would happen if the number of mice, rabbits, and grasshoppers all increased?The number of producers would decreaseThe number of owls and foxes would also decreasemice, rabbits, and grasshoppers would get fatNothing would change - there would just be more mice, rabbits, and grasshoppers30sEditDelete
- Q12What releases oxygen into the air?ProducersSunConsumersWater30sEditDelete
- Q13Why does the energy pyramid get smaller at the top?the organisms at each level use some energy for survival and lose some energy as heat, so there is less and less energy available at the higher levelsThere are fewer and fewer organisms at each level.It represents how many of each organism can survive on a certain amount of energy at each level.It doesn't mean anything. It's just a cute way to draw it.30sEditDelete
- Q14In the energy pyramid shown here, which organisms are the primary consumers?large, green fishhawksalgae and other green aquatic plantssnails, small fish, insects30sEditDelete
- Q15In the energy pyramid above, which organism would have the least amount of energy available?hawksnailalgae and other green aquatic plantsmedium fish30sEditDelete
- Q16In the food chain shown, which population would increase if the insects were eliminated?GrassFrogsEverything would stay the sameSnakes30sEditDelete
- Q17Place these words in the correct order for the movement of energy through a food chain. Producers, sun, consumers, scavengers, decomposersproducers, consumers, sun, scavengers, decomposersdecomposers, scavengers, consumers, producers, sunSun, producers, consumers, scavengers, decomposerssun, consumers, producers, scavengers, decomposers30sEditDelete
- Q18What group of organisms is missing from this food web?Primary consumersSecondary consumersProducersTertiary Consumers30sEditDelete
- Q19Name a carnivore from the food web abovemountain lionDouglas's Squirrelmule deerSeeds30sEditDelete
- Q20Removing which organism from a food web would have the greatest effect on the other organisms?decomposersconsumersscavengersProducers30sEditDelete
