5th Grade Science 5.L.2.2

Where are producers located on the food chain? A) At the beginning, because they create their own food. B) In the center, because every organism reliers on producers. C) At the end, because they rely on other organisms for energy. D) Their position changes depending on what they are eating at that time.

A) At the beginning, because they create their own food.

Which best describes the role of a first-level consumer in an ecosystem? A) Consumers eat producers and pass the energy along in an ecosystem. B) Consumer eat scavengers and pass the energy along in an ecosystem. C) Consumers eat decomposers and pass the energy along in an ecosystem. D) Consumers eat other consumers and pass the energy along in an ecosystem.

A) Consumers eat producers and pass the energy along in an ecosystem.

Which best describes the role of tiny plant in a coral reef ecosystem? A) It is the start of many coral reef food chains. B) It provides food and shelter to large predators. C) It must get food energy from a source other than the sun. D) It is a direct source of energy for all of the animals in the ecosystem.

A) It is the start of many coral reef food chains.

Which best explains the function of producers in a forest ecosystem? A) Producer provide energy for consumers in the ecosystem. B) Producers provide energy for decomposers in the ecosystem. C) Producers provide energy for other producers in the ecosystem. D) Producers provide energy for consumers and other producers in the ecosystem.

A) Producers provide energy for consumer in the ecosystem.

Which best explains why producers are an important part of an ecosystem? A) They pass the Sun's energy on to other organisms. B) They pass energy from consumers to decomposers. C) They make their own energy and pass it on to other producers. D) They pass energy from first-level consumers to second-level consumers.

A) They pass the Sun's energy on to other organisms.

Which best describes the producers of an ecosystem? A) They provide food to herbivores. B) They provide food to decomposers. C) They provide hydrogen to the atmosphere.

A) They provide food to herbivores.

Which organisms provides oxygen and food in an ecosystem? A) algae B) fungi C) protists D) bacteria

A) algae

Which organism plays an important role in recycling nutrients back into the environment? A) bacteria B) algae C) wolf D) tree

A) bacteria

Which could be a secondary consumer? A) bear B) oak tree C) slug D) squirrel

A) bear

Which is the term for secondary consumers in an ecosystem? A) carnivore B) herbivore C) omnivore D) producer

A) carnivore

Which would decomposers most likely feed on in a wetland? A) dead plants and amphibians B) growing plants and amphibian eggs C) amphibians at the aquatic larval stage

A) dead plants and amphibian eggs

Bacteria are released into the Gulf of Mexico to help clean up and oil spill. What role do the bacteria serve in the marine ecosystem? A) decomposers B) consumers C) producers D) predators

A) decomposers

Which organism is a decomposer? A) fungus B) ladybug C) spider D) sunflower

A) fungus

Meadow voles are small mouse -like animals that eat plants and insects. their niche in an ecosystem is a ... A) omnivore. B) herbivore. C) producer. D) scavenger.

A) omnivore

Which gets all of its energy from the sun? A) producer B) consumer C) decomposer

A) producer

Which is the first organism in a food chain? A) producer B) consumer C) decomposer

A) producer

Which organisms would be affected first if the amount of light were reduced in an ecosystem? A) producers B) herbivores C) consumers D) carnivores

A) producers

What is needed for plants to produce sugar? A) water, sunlight, carbon dioxide B) water, sunlight, nitrogen C) water, sunlight, oxygen

A) water, sunlight, carbon dioxide

How is a deer in a forest ecosystem most similar to a rabbit in the same ecosystem? A) Both are decomposers. B) Both are consumers. C) Both are carnivores. D) Both are producers.

B) Both are consumers.

How do decomposers recycle materials in nature? A) Decomposers create new material to be recycled. B) Decomposers break down the tissues of dead organisms. C) Decomposers are dead organisms to be eaten by producers. D) Decomposers produce bacteria and fungi as part of the recycling process.

B) Decomposers break down the tissues of dead organisms.

Some living organisms feed on the remains of dead organisms. Why is this important in nature? A) The dead organisms are needed to provide warmth for most plants. B) For nature to remain in balance, dead organisms need to be recycled. C) For plants to make their own food, they need the nutrients from dead organisms. D) The remains of dead organisms are needed to provide more oxygen in the atmosphere.

B) For nature to remain in balance, dead organisms need to be recycled.

Why would an oak tree be considered a producer? A) It can eat plants or animals to survive. B) It provides acorns for squirrels. C) It does not decay when it dies. D) It is inorganic.

B) It provides acorns for squirrels.

Which is the most important effect of decomposers recycling dead plants and animals? A) The process prevents bad odors. B) The process adds nutrients to soil. C) The process removes objects from Earth. D) The process produces food for consumers.

B) The process adds nutrients to soil.

Which is a producer? A) an owl B) a tree C) a mouse D) a worm

B) a tree

In the forest ecosystem, which would be most helpful in speeding up the rate of decomposition? A) a decrease in moisture B) an increase in temperature C) a decrease in the size of an organism D) an increase in the amount of nutrients being recycled

B) an increase in temperature

Which of these organisms is considered a consumer? A) algae B) bird C) fungai D) tree

B) bird

How do decomposers recycle dead trees? A) by releasing oxygen B) by turning them into soil C) by turning them into producers D) by making them food for consumers

B) by turning them into soil

Which is least likely to be classified as a consumer? A) carnivore B) decomposer C) herbivore D) omnivore

B) decomposer

Which type of organisms change dead material into nutrients for other animals to use? A) consumers B) decomposers C) herbivores D) producers

B) decomposers

Which list names the animals that live in an aquatic ecosystem? A) black bear, deer, vole B) ducks, turtles, amphibians C) panthers, monkeys, snakes D) prairie dogs, bison, grasshoppers

B) ducks, turtles, amphibians

A food web includes grass, grasshoppers, moss, and mushrooms. Which is identified as a consumer? A) grass B) grasshopper C) moss D) mushroom

B) grasshopper

Which type of organisms eats only plants? A) carnivore B) herbivore C) producer D) scavenger

B) herbivore

Which organisms directly use light energy from the sun to obtain food? A) carnivores B) producers C) consumers D) decomposers

B) producers

Which is a consumer that only eats producers? A) bird B) snail C) grass D) mushroom

B) snail

Which best explains how decomposers benefit an ecosystem? A) They increase dead organisms within the food chain. B) They create food for producers within the food chain. C) They break down dead organisms within the food chain. D) They supply consumers with food within the food chain.

C) They break down dead organisms within the food chain.

Which best describes the role of both mushrooms and worms in an ecosystem? A) They provide food for carnivores. B) They provide food for herbivores. C) They provide nutrients for the soil. D) They provide nutrients during photosynthesis.

C) They provide nutrients for the soil.

Which best explains why producers are at the beginning of all food chains? A) They turn dead animals into nutrients. B) They provide shelter for smaller animals. C) They transfer energy from the sun into food.

C) They transfer energy from the sun into food.

Which organism receives its energy from the sun? A) a bee B) a cat C) a tree D) a grasshopper

C) a tree

Which will most likely increase the rate of decomposition of dead plants and animals? A) a decrease in temperature B) a decrease in the number of decomposers C) an increase in the amount of moisture in the air D) an increase in the amount of carbon dioxide in the air

C) an increase in the amount of moisture in the air

Which describes a decomposer? A) an organism that eats only plants B) an organism that makes its own food C) an organism that breaks down dead matter D) an organism that receives energy from the sun

C) an organism that breaks down dead matter

Which describes a consumer? A) an organism that produces its own food B) ab organism that produces its own energy C) an organism that cannot produce its own food D) an organism that releases energy to other organisms

C) an organism that cannot produce its own food

Which group lists only decomposers? A) tadpoles, frogs, and algae B) detritus, crayfish, and turtles C) bacteria, earthworms, and fungi

C) bacteria, earthworms, and fungi

How are consumers generally classified? A) by the amount of food they eat B) by the size of their tracks C) by the type of food they eat D) by the way they digest their food

C) by the type of food they eat

Which group of organisms are consumers? A) bacteria, fungi, and mushrooms B) cactus, fern, and the maple tree C) deer, rabbit, and squirrel D) moss, protist, and algae

C) deer, rabbit, and squirrel

Which best describes animals that eat only plants? A) decomposers B) carnivores C) herbivores

C) herbivores

Which organism is best classified as a consumer? A) worm B) algae C) human D) mushroom

C) human

Where do decomposers work the fastest to recycle organic material? A) in the desert B) in the tundra C) in the rainforest D) in the mountains

C) in the rainforest

In a food chain, the sun provides energy for an apple tree to grow. A deer eats an apple from the tree. Which is a consumer? A) the tree B) the apple C) the deer D) the sun

C) the deer

Which is a group of producers that could be found in a forest? A) cacti, shrubs, and yucca B) deer, squirrels, and mice C) trees, grasses, and vines D) lizards, scorpions, and rodents

C) trees, grasses, and vines

Which animal recycle food waster and turn it into nutrients for the soil? A) birds B) foxes C) worms D) squirrels

C) worms

Which best describes the role of decomposers in an ecosystem? A) Decomposers eat consumers and pass along energy. B) Decomposers eat scavengers and pass along energy. C) Decomposers get energy from the sun to help producers. D) Decomposers get angry by breaking down decaying matter.

D) Decomposers get angry by breaking down decaying matter.

Which statement best describes producers? A) Producers in water ecosystems are mainly algae. B) Producers in land ecosystems are mainly grasses. C) Producers in both water and land ecosystems are mainly trees. D) Producers in both water and land ecosystems are mainly green plants.

D) Producers in both water and land ecosystems are mainly green plants.

Which best explains how producers make their own food? A) Producers receive energy from rain and use it to produce water for their food. B) Producers receive energy from rain and use it to produce gases for their food. C) Producers receive energy from the sun and use it to produce water for their food. D) Producers receive energy from the sun and produce sugars for their food.

D) Producers receive energy from the sun and produce sugars for their food.

In which way are decomposers a benefit to the environment? A) They produce oxygen that animals need to survive. B) They make their own food through the process of photosynthesis. C) They prevent fungi and bacteria from causing diseases in plants. D) They make soil more fertile by breaking down dead plants and animals.

D) They make soil more fertile by breaking down dead plants and animals.

A crow eats the remains of a dead animal. What type of consumer does this prove this crow to be? A) a decomposer B) a herbivore C) a predator D) a scavenger

D) a scavenger

An organism that breaks down dead plants and animals, returning matter back into the soil, is called a ... A) herbivore. B) producer. C) competitor. D) decomposer.

D) decomposer.

What type of organisms are responsible for recycling the remains of a dead plant or animal to the soil? A) producers B) consumers C) herbivores D) decomposers

D) decomposers

Which organisms use energy to make nutrients for plants? A) producers B) carnivores C) herbivores D) decomposers

D) decomposers

Which is an example of a decomposer? A) grass B) cactus C) flower D) mushroom

D) mushrooms

A brown bear eats a variety of foods including berries, insects, and small animals. Which best describes a brown bear? A) producer B) herbivore C) carnivore D) omnivore

D) omnivore

Which best describes grasses, shrubs, and trees? A) consumers B) decomposers C) omnivores D) producers

D) producers

Which group of organisms make up the largest part of a food chain? A) carnivores B) consumers C) decomposers D) producers

D) producers

Decaying plants and animals are important to an ecosystem because they.. A) cause disease in living organisms. B) reduce soil erosion. C) recycle oxygen to the air. D) return nutrients to the soil.

D) return nutrients to the soil.

Which organism would be eaten last in a food chain? A) producer B) decomposers C) firs-level consumers D) second-level consumers

D) second-level consumers

Which organism is a producer? A) deer B) spider C) ladybug D) sunflower

D) sunflower

Which best describes the role of producers in a wetland ecosystem? A) to provide food and heat B) to provide oxygen and water C) to provide water and energy D) to provide energy and oxygen

D) to provide energy and oxygen