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    use the drop-down menus to answer the questions. which organism begins this food chain and is a producer? which organism gains energy from eating the frog? which organism has the most available energy in this food chain?

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    get use the drop-down menus to answer the questions. which organism begins this food chain and is a producer? which organism gains energy from eating the frog? which organism has the most available energy in this food chain? from EN Bilgi.

    food webs and ecosystem balance

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    QUIZ

    food webs and ecosystem balance

    food webs and ecosystem balance 62%

    110 4th 4th Science SARA SOUTHARD 2 years

    25 Qs

    1. Multiple-choice 1 minute Q.

    Starting with a producer, which food chain is in the correct order?

    answer choices

    grass -> grasshopper -> frog -> snake -> eagle

    eagle -> snake -> frog ->grasshopper -> grass

    grasshopper ->grass -> frog -> snake -> eagle

    grass -> grasshopper -> frog -> eagle -> snake

    2. Multiple-choice 30 seconds Q.

    Where does the energy originate that is needed to maintain an ecosystem?

    answer choices plants soil sun water 3. Multiple-choice 1 minute Q.

    A student makes a model of a food web present in oceans by using information about several aquatic organisms. The student is unable to link penguins with phytoplankton. Which organism should the student include to link penguins with phytoplankton?

    answer choices bacteria pine trees polar bears shrimp 4. Multiple-choice 1 minute Q.

    In a forest ecosystem, a hawk is predator, and its prey is a mouse. What will most likely happen if the number of hawks declines?

    answer choices

    The number of mice will barely decrease.

    The number of mice will greatly decrease.

    The number of mice will stay the same.

    The number of mice will increase.

    5. Multiple-choice 1 minute Q.

    Grizzly bears eat salmon. What would most likely happen if humans removed a large number of salmon from the bear's habitat through fishing?

    answer choices

    The number of grizzly bears would increase.

    The number of grizzly bears would decrease.

    The salmon population would reproduce more often.

    The humans would become prey to grizzly bears.

    6. Multiple-choice 30 seconds Q.

    Which pair is a good example of decomposers?

    answer choices fish and frogs

    earthworms and mushrooms

    grasshopper and beetles

    hawks and coyotes 7. Multiple-choice 1 minute Q.

    Which is missing from this food chain?

    grass -> grasshopper -> _______ -> snake -> hawk

    answer choices frog eagle deer cow 8. Multiple-choice 1 minute Q.

    Which is an example of a carnivore?

    answer choices

    a horse eating hay and grass

    a giraffe eating fruit and leaves

    an ape eating insects and bananas

    a tiger eating zebras and deer

    9. Multiple-choice 30 seconds Q.

    In a food web, what is the role of a consumer?

    answer choices

    They add nutrients back to the soil.

    They get energy by eating other organisms.

    They have no role in a food web.

    They make food through photosynthesis.

    10. Multiple-choice 1 minute Q.

    Why do scientists draw food chains?

    answer choices

    to show the path of food from producers to decomposers.

    the show the path of water through living organisms.

    to show the path of food among all living organisms

    to show how energy flows between organisms

    11. Multiple-choice 1 minute Q.

    Which statement explains why a green plant is always found at the start of a food chain or web?

    answer choices

    Green plants eat other plants.

    Most green plants are food to eat.

    Green plants produce their own energy.

    Green plants are filled with better nutrients.

    12. Multiple-choice 1 minute Q.

    Mr. Sydney lives in a cabin on a riverbank and loves the environment. Which is the correct order for the flow of energy in a riverbank environment?

    answer choices

    fish -> sun -> racoon -> water plants

    sun -> water plants -> fish -> racoon

    sun -> water plants -> racoon -> fish

    water plants -> racoon -> fish -> sun

    13. Multiple-choice 1 minute Q.

    Which statement best explains how the role of an organism in a food chain is described?

    answer choices

    The role of an organism in a food chain is described by the organism's size.

    The role of an organism in a food chain is described by the way it gets its energy.

    The role of an organism in a food chain is described by the organism's lifespan.

    The role of an organism in a food chain is described by the speed of the organism.

    14. Multiple-choice 1 minute Q.

    The largemouth bass feeds on small fish, snails, crayfish, and salamanders. What might be the role of the largemouth bass in a freshwater ecosystem?

    answer choices decomposer primary consumer producer secondary consumer 15. Multiple-choice 30 seconds Q.

    A mississippi black bear consumes plants, insects, grubs, and rotting flesh as part of its diet. Which term describes the black bear's role in a food web?

    answer choices carnivore decomposer herbivore omnivore 16. Multiple-choice 1 minute Q.

    Scientists have discovered an increase in the amount of green algae growing in Lake Waccamaw. How will the increase in the green algae population benefit the fish population of the lake?

    Source : quizizz.com

    A food chain begins with

    Click here👆to get an answer to your question ✍️ A food chain begins with

    Question

    A food chain begins with

    A

    Photosynthetic organisms

    B

    Nitrogen fixing organisms

    C

    Decomposers

    D

    Consumers

    Medium Open in App

    Source : www.toppr.com

    Food Webs

    A food web is a detailed description of the species within a community and their relationships with each other; it shows how energy is transferred up food chains that are interlinked with other food chains.

    RESOURCE LIBRARY

    ENCYCLOPEDIC ENTRY

    Food Webs

    A food web is a detailed description of the species within a community and their relationships with each other; it shows how energy is transferred up food chains that are interlinked with other food chains.

    GRADES 5 - 12+ SUBJECTS Biology, Ecology

    Saved by 76 educators

    IMAGE

    Deer Eating Leaves

    A white tailed deer (Odocoileus virginianus) eating leaves from a bush in Ottawa, Canada. Deer are key members of the food web.

    PHOTOGRAPH BY: JIM CUMMING/ALAMY STOCK PHOTO

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    A food web is all of the interactions between the species within a community that involve the transfer of energy through consumption. A food web incorporates different food chains within an environment. These types of interactions occur between producer and consumer, and between predator and prey.

    The transfer of energy starts with plants. Plants are able to convert sunlight into a chemical form of energy through the process of photosynthesis. One of the end products of photosynthesis is glucose, a sugar in which energy is stored. Plants are called producers because they produce their own energy without consuming another organism.

    Animals are called consumers; they must consume plants and other animals to obtain energy. Animals that feed only on plants are called herbivores, or primary consumers since they eat producers. Animals that feed on other animals are called carnivores. They are called secondary consumers if they eat primary consumers. Another kind of secondary consumer is an omnivore, which is an animal that feeds on both plants and other animals. Any animal that hunts and feeds on other animals is called a predator, and the animals that predators feed on are called prey. All carnivores are predators, and herbivores—and sometimes omnivores or other carnivores—are their prey.

    Energy moves up a food chain, starting with plants, then moving up through herbivores, and then carnivores. A fourth group of organisms called decomposers breaks down the organic matter left behind by these other organisms, like dead animals or plants. Organisms within each group gain energy by feeding on the organisms in the group below them on the food chain. The top predator of a food chain is the carnivore within the community that does not have any predators of its own. When the top predator dies, their remains are broken down by decomposers—bacteria and fungi. Decomposers return nutrients back to soil to help restart the food chain.

    An example of a marine food chain starts with seaweed as the producer, which is then fed on by zooplankton. From there, crustaceans will consume the zooplankton, and larger fish will consume the crustaceans. At this point, the fish will be eaten by squids, and finally, the squids will be devoured by sharks. Sharks are a top predator with no predators of their own, so they are at the top of the food chain.

    The amount of available energy decreases as it moves up the food chain. This is because only plants are able to produce energy in the first place, and at each step of the food chain energy is lost in the form of heat as the organism maintains their body and performs daily functions.

    Since a food web is representative of an entire community, it will consist of multiple food chains that are intertwined. There are usually multiple predator species that feed on a particular prey species, and one predator species usually feeds on multiple prey species. The same goes for the relationship between plants and herbivores.

    A food web describes the many species and interactions within an ecosystem. Mapping these interactions can show us how an entire ecosystem could fall apart if it loses even one species.

    carnivore

    Noun

    organism that eats meat.

    community

    Noun

    group of organisms or a social group interacting in a specific region under similar environmental conditions.

    consumer

    Noun

    organism on the food chain that depends on autotrophs (producers) or other consumers for food, nutrition, and energy.

    crustacean

    Noun

    type of animal (an arthropod) with a hard shell and segmented body that usually lives in the water.

    decomposer

    Noun

    organism that breaks down dead organic material; also sometimes referred to as detritivores

    glucose

    Noun

    "simple sugar" chemical produced by many plants during photosynthesis.

    herbivore

    Noun

    organism that eats mainly plants and other producers.

    omnivore

    Noun

    organism that eats a variety of organisms, including plants, animals, and fungi.

    organism

    Noun

    living or once-living thing.

    photosynthesis

    Noun

    process by which plants turn water, sunlight, and carbon dioxide into water, oxygen, and simple sugars.

    predator

    Noun

    animal that hunts other animals for food.

    Source : www.nationalgeographic.org

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