MEDIUM
Earn 100
Identify the organism labelled as X in the above food web. (Specify common name)
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Important Questions on Develop a model to describe the cycling of matter and flow of energy among living and nonliving parts of an ecosystem.
EASY
Life Sciences>Ecosystems: Interactions, Energy, and Dynamics>Develop a model to describe the cycling of matter and flow of energy among living and nonliving parts of an ecosystem.>Cycle of Matter and Energy Transfer in Ecosystems - Food webs are models that demonstrate how matter and energy is transferred between producers, consumers, and decomposers as the three groups interact within an ecosystem. Transfers of matter into and out of the physical environment occur at every level. Decomposers recycle nutrients from dead plant or animal matter back to the soil in terrestrial environments or to the water in aquatic environments. The atoms that make up the organisms in an ecosystem are cycled repeatedly between the living and nonliving parts of the ecosystem.
HARD
Life Sciences>Ecosystems: Interactions, Energy, and Dynamics>Develop a model to describe the cycling of matter and flow of energy among living and nonliving parts of an ecosystem.>Cycle of Matter and Energy Transfer in Ecosystems - Food webs are models that demonstrate how matter and energy is transferred between producers, consumers, and decomposers as the three groups interact within an ecosystem. Transfers of matter into and out of the physical environment occur at every level. Decomposers recycle nutrients from dead plant or animal matter back to the soil in terrestrial environments or to the water in aquatic environments. The atoms that make up the organisms in an ecosystem are cycled repeatedly between the living and nonliving parts of the ecosystem.
EASY
Life Sciences>Ecosystems: Interactions, Energy, and Dynamics>Develop a model to describe the cycling of matter and flow of energy among living and nonliving parts of an ecosystem.>Cycle of Matter and Energy Transfer in Ecosystems - Food webs are models that demonstrate how matter and energy is transferred between producers, consumers, and decomposers as the three groups interact within an ecosystem. Transfers of matter into and out of the physical environment occur at every level. Decomposers recycle nutrients from dead plant or animal matter back to the soil in terrestrial environments or to the water in aquatic environments. The atoms that make up the organisms in an ecosystem are cycled repeatedly between the living and nonliving parts of the ecosystem.
An illustration of a pyramid of a number of an aquatic ecosystem is given.
The pyramid of energy for the same ecosystem would be:
HARD
Life Sciences>Ecosystems: Interactions, Energy, and Dynamics>Develop a model to describe the cycling of matter and flow of energy among living and nonliving parts of an ecosystem.>Cycle of Matter and Energy Transfer in Ecosystems - Food webs are models that demonstrate how matter and energy is transferred between producers, consumers, and decomposers as the three groups interact within an ecosystem. Transfers of matter into and out of the physical environment occur at every level. Decomposers recycle nutrients from dead plant or animal matter back to the soil in terrestrial environments or to the water in aquatic environments. The atoms that make up the organisms in an ecosystem are cycled repeatedly between the living and nonliving parts of the ecosystem.
Name the plant that is used to make the soil Nitrogen rich.
MEDIUM
Life Sciences>Ecosystems: Interactions, Energy, and Dynamics>Develop a model to describe the cycling of matter and flow of energy among living and nonliving parts of an ecosystem.>Cycle of Matter and Energy Transfer in Ecosystems - Food webs are models that demonstrate how matter and energy is transferred between producers, consumers, and decomposers as the three groups interact within an ecosystem. Transfers of matter into and out of the physical environment occur at every level. Decomposers recycle nutrients from dead plant or animal matter back to the soil in terrestrial environments or to the water in aquatic environments. The atoms that make up the organisms in an ecosystem are cycled repeatedly between the living and nonliving parts of the ecosystem.
a) Given below are some organisms. Arrange all of them in a food chain and show the direction of the flow of energy.
Eagle, grasshopper, frog, grass, snake.
b) Which of the organism in the above food chain has maximum amount of energy ?
c) Give an example of artificial ecosystem.
MEDIUM
Life Sciences>Ecosystems: Interactions, Energy, and Dynamics>Develop a model to describe the cycling of matter and flow of energy among living and nonliving parts of an ecosystem.>Cycle of Matter and Energy Transfer in Ecosystems - Food webs are models that demonstrate how matter and energy is transferred between producers, consumers, and decomposers as the three groups interact within an ecosystem. Transfers of matter into and out of the physical environment occur at every level. Decomposers recycle nutrients from dead plant or animal matter back to the soil in terrestrial environments or to the water in aquatic environments. The atoms that make up the organisms in an ecosystem are cycled repeatedly between the living and nonliving parts of the ecosystem.
EASY
Life Sciences>Ecosystems: Interactions, Energy, and Dynamics>Develop a model to describe the cycling of matter and flow of energy among living and nonliving parts of an ecosystem.>Cycle of Matter and Energy Transfer in Ecosystems - Food webs are models that demonstrate how matter and energy is transferred between producers, consumers, and decomposers as the three groups interact within an ecosystem. Transfers of matter into and out of the physical environment occur at every level. Decomposers recycle nutrients from dead plant or animal matter back to the soil in terrestrial environments or to the water in aquatic environments. The atoms that make up the organisms in an ecosystem are cycled repeatedly between the living and nonliving parts of the ecosystem.
The following figure represents the flow of energy in a pyramid of food. If this ecosystem receives 100000 kcal of sunlight energy of the energy finally available to Tertiary Consumer (TC) is:
HARD
Life Sciences>Ecosystems: Interactions, Energy, and Dynamics>Develop a model to describe the cycling of matter and flow of energy among living and nonliving parts of an ecosystem.>Cycle of Matter and Energy Transfer in Ecosystems - Food webs are models that demonstrate how matter and energy is transferred between producers, consumers, and decomposers as the three groups interact within an ecosystem. Transfers of matter into and out of the physical environment occur at every level. Decomposers recycle nutrients from dead plant or animal matter back to the soil in terrestrial environments or to the water in aquatic environments. The atoms that make up the organisms in an ecosystem are cycled repeatedly between the living and nonliving parts of the ecosystem.
There is an increase in the atmospheric temperature year by year. If it continues, guess and write what could be the consequences?
HARD
Life Sciences>Ecosystems: Interactions, Energy, and Dynamics>Develop a model to describe the cycling of matter and flow of energy among living and nonliving parts of an ecosystem.>Cycle of Matter and Energy Transfer in Ecosystems - Food webs are models that demonstrate how matter and energy is transferred between producers, consumers, and decomposers as the three groups interact within an ecosystem. Transfers of matter into and out of the physical environment occur at every level. Decomposers recycle nutrients from dead plant or animal matter back to the soil in terrestrial environments or to the water in aquatic environments. The atoms that make up the organisms in an ecosystem are cycled repeatedly between the living and nonliving parts of the ecosystem.
Attempt the following:
(i) Construct a Food Chain with the help of the organisms given below:
Hawk, Grass, Snake, Hen.
(ii) Why is it not advisable to have a six-step food chain?
(iii) If Pesticides enter the above food chain.
(a) In which organism will it be found in the maximum amount?
(b) What is this phenomenon called?
HARD
Life Sciences>Ecosystems: Interactions, Energy, and Dynamics>Develop a model to describe the cycling of matter and flow of energy among living and nonliving parts of an ecosystem.>Cycle of Matter and Energy Transfer in Ecosystems - Food webs are models that demonstrate how matter and energy is transferred between producers, consumers, and decomposers as the three groups interact within an ecosystem. Transfers of matter into and out of the physical environment occur at every level. Decomposers recycle nutrients from dead plant or animal matter back to the soil in terrestrial environments or to the water in aquatic environments. The atoms that make up the organisms in an ecosystem are cycled repeatedly between the living and nonliving parts of the ecosystem.
Which of the following constitute a food chain?
HARD
Life Sciences>Ecosystems: Interactions, Energy, and Dynamics>Develop a model to describe the cycling of matter and flow of energy among living and nonliving parts of an ecosystem.>Cycle of Matter and Energy Transfer in Ecosystems - Food webs are models that demonstrate how matter and energy is transferred between producers, consumers, and decomposers as the three groups interact within an ecosystem. Transfers of matter into and out of the physical environment occur at every level. Decomposers recycle nutrients from dead plant or animal matter back to the soil in terrestrial environments or to the water in aquatic environments. The atoms that make up the organisms in an ecosystem are cycled repeatedly between the living and nonliving parts of the ecosystem.
MEDIUM
Life Sciences>Ecosystems: Interactions, Energy, and Dynamics>Develop a model to describe the cycling of matter and flow of energy among living and nonliving parts of an ecosystem.>Cycle of Matter and Energy Transfer in Ecosystems - Food webs are models that demonstrate how matter and energy is transferred between producers, consumers, and decomposers as the three groups interact within an ecosystem. Transfers of matter into and out of the physical environment occur at every level. Decomposers recycle nutrients from dead plant or animal matter back to the soil in terrestrial environments or to the water in aquatic environments. The atoms that make up the organisms in an ecosystem are cycled repeatedly between the living and nonliving parts of the ecosystem.
Give reason:
Food chains generally consist of only three or four steps.
MEDIUM
Life Sciences>Ecosystems: Interactions, Energy, and Dynamics>Develop a model to describe the cycling of matter and flow of energy among living and nonliving parts of an ecosystem.>Cycle of Matter and Energy Transfer in Ecosystems - Food webs are models that demonstrate how matter and energy is transferred between producers, consumers, and decomposers as the three groups interact within an ecosystem. Transfers of matter into and out of the physical environment occur at every level. Decomposers recycle nutrients from dead plant or animal matter back to the soil in terrestrial environments or to the water in aquatic environments. The atoms that make up the organisms in an ecosystem are cycled repeatedly between the living and nonliving parts of the ecosystem.
MEDIUM
Life Sciences>Ecosystems: Interactions, Energy, and Dynamics>Develop a model to describe the cycling of matter and flow of energy among living and nonliving parts of an ecosystem.>Cycle of Matter and Energy Transfer in Ecosystems - Food webs are models that demonstrate how matter and energy is transferred between producers, consumers, and decomposers as the three groups interact within an ecosystem. Transfers of matter into and out of the physical environment occur at every level. Decomposers recycle nutrients from dead plant or animal matter back to the soil in terrestrial environments or to the water in aquatic environments. The atoms that make up the organisms in an ecosystem are cycled repeatedly between the living and nonliving parts of the ecosystem.
A food chain in a polluted aquatic ecosystem is given. Observe it and answer the following questions.
Freshwater Algae Fishes Birds.
(i) Which organisms are disturbed more due to biomagnification? Why?
(ii) This ecosystem will be destroyed gradually due to biomagnification. Why?
MEDIUM
Life Sciences>Ecosystems: Interactions, Energy, and Dynamics>Develop a model to describe the cycling of matter and flow of energy among living and nonliving parts of an ecosystem.>Cycle of Matter and Energy Transfer in Ecosystems - Food webs are models that demonstrate how matter and energy is transferred between producers, consumers, and decomposers as the three groups interact within an ecosystem. Transfers of matter into and out of the physical environment occur at every level. Decomposers recycle nutrients from dead plant or animal matter back to the soil in terrestrial environments or to the water in aquatic environments. The atoms that make up the organisms in an ecosystem are cycled repeatedly between the living and nonliving parts of the ecosystem.
MEDIUM
Life Sciences>Ecosystems: Interactions, Energy, and Dynamics>Develop a model to describe the cycling of matter and flow of energy among living and nonliving parts of an ecosystem.>Cycle of Matter and Energy Transfer in Ecosystems - Food webs are models that demonstrate how matter and energy is transferred between producers, consumers, and decomposers as the three groups interact within an ecosystem. Transfers of matter into and out of the physical environment occur at every level. Decomposers recycle nutrients from dead plant or animal matter back to the soil in terrestrial environments or to the water in aquatic environments. The atoms that make up the organisms in an ecosystem are cycled repeatedly between the living and nonliving parts of the ecosystem.
MEDIUM
Life Sciences>Ecosystems: Interactions, Energy, and Dynamics>Develop a model to describe the cycling of matter and flow of energy among living and nonliving parts of an ecosystem.>Cycle of Matter and Energy Transfer in Ecosystems - Food webs are models that demonstrate how matter and energy is transferred between producers, consumers, and decomposers as the three groups interact within an ecosystem. Transfers of matter into and out of the physical environment occur at every level. Decomposers recycle nutrients from dead plant or animal matter back to the soil in terrestrial environments or to the water in aquatic environments. The atoms that make up the organisms in an ecosystem are cycled repeatedly between the living and nonliving parts of the ecosystem.
HARD
Life Sciences>Ecosystems: Interactions, Energy, and Dynamics>Develop a model to describe the cycling of matter and flow of energy among living and nonliving parts of an ecosystem.>Cycle of Matter and Energy Transfer in Ecosystems - Food webs are models that demonstrate how matter and energy is transferred between producers, consumers, and decomposers as the three groups interact within an ecosystem. Transfers of matter into and out of the physical environment occur at every level. Decomposers recycle nutrients from dead plant or animal matter back to the soil in terrestrial environments or to the water in aquatic environments. The atoms that make up the organisms in an ecosystem are cycled repeatedly between the living and nonliving parts of the ecosystem.
Algae, Hydrilla, grasshopper, rat, squirrel, crow, maize plant, deer, rabbit, lizard, wolf, snake, peacock, phytoplankton, crustaceans, whale, tiger, lion, sparrow, duck, crane, cockroach, spider, toad, fish, leopard, elephant, goat, Nymphaea, Spirogyra.
MEDIUM
Life Sciences>Ecosystems: Interactions, Energy, and Dynamics>Develop a model to describe the cycling of matter and flow of energy among living and nonliving parts of an ecosystem.>Cycle of Matter and Energy Transfer in Ecosystems - Food webs are models that demonstrate how matter and energy is transferred between producers, consumers, and decomposers as the three groups interact within an ecosystem. Transfers of matter into and out of the physical environment occur at every level. Decomposers recycle nutrients from dead plant or animal matter back to the soil in terrestrial environments or to the water in aquatic environments. The atoms that make up the organisms in an ecosystem are cycled repeatedly between the living and nonliving parts of the ecosystem.
MEDIUM
Life Sciences>Ecosystems: Interactions, Energy, and Dynamics>Develop a model to describe the cycling of matter and flow of energy among living and nonliving parts of an ecosystem.>Cycle of Matter and Energy Transfer in Ecosystems - Food webs are models that demonstrate how matter and energy is transferred between producers, consumers, and decomposers as the three groups interact within an ecosystem. Transfers of matter into and out of the physical environment occur at every level. Decomposers recycle nutrients from dead plant or animal matter back to the soil in terrestrial environments or to the water in aquatic environments. The atoms that make up the organisms in an ecosystem are cycled repeatedly between the living and nonliving parts of the ecosystem.
