$CATEGORY: Science - Khan Academy/15.Our Environment/15.Our Environment--Eco Systems-What are its Components?

//Multiple Choice

What is the source of energy for all living organisms in an ecosystem? {
    ~Water
    ~Oxygen
    =Sunlight
    ~Soil
}

In a food chain, which of the following organisms is the primary producer? {
    ~Herbivores
    ~Carnivores
    =Plants
    ~Decomposers
}

What happens to energy as it moves from one trophic level to the next in a food chain? {
    ~It is completely transferred to the next level
    =It is partially transferred, with a significant amount lost as heat
    ~It is stored in the bodies of organisms
    ~It disappears
}

Which of the following organisms is typically found at the top of a food chain? {
    ~Producers
    ~Primary consumers
    ~Secondary consumers
    =Apex predators
}

In a food web, how are different food chains related to each other? {
    ~They are independent of each other
    =They overlap and connect in complex ways
    ~They are isolated
    ~They are the same
}

//True or False

Energy is passed from one trophic level to the next without any loss. {F}

Decomposers are essential in the recycling of nutrients in an ecosystem. {T}

In a food chain, tertiary consumers feed on primary consumers. {F}

All organisms in a food web are interconnected, forming a complex network of energy flow. {T}

Producers are the first trophic level in a food chain. {T}

//Fill in the blanks



//Numericals



//Match the following

Match the following items from Column A with their correct corresponding options from Column B\:
{
=Producers -> Animals that eat plants
=Primary consumers -> Eat primary consumers 
=Secondary consumers -> Organisms that eat secondary consumers
=Tertiary consumers -> Organisms that break down dead material
=Decomposers -> Decomposers
}


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