EASY
Earn 100

Major producers in an aquatic ecosystem are:

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Important Questions on Ecosystem

MEDIUM
Biology>Ecology>Ecosystem>Ecosystem- Structure and Function
What do detritus food chains begin with?
EASY
Biology>Ecology>Ecosystem>Ecosystem- Structure and Function
Explain the role of the ‘first trophic level’ in an ecosystem.
EASY
Biology>Ecology>Ecosystem>Ecosystem- Structure and Function
Define standing crop.
EASY
Biology>Ecology>Ecosystem>Ecosystem- Structure and Function
Explain the flow of energy in an ecosystem with the help of a diagram.
EASY
Biology>Ecology>Ecosystem>Ecosystem- Structure and Function

Match the trophic levels with their correct species examples in grassland ecosystem.

(a) Fourth trophic level (i) Crow
(b) Second trophic level (ii) Vulture
(c) First trophic level (iii) Rabbit
(d) Third trophic level (iv) Grass

Select the correct option.

EASY
Biology>Ecology>Ecosystem>Ecosystem- Structure and Function

Write the differences between 

Food chain and food web

MEDIUM
Biology>Ecology>Ecosystem>Ecosystem- Structure and Function
Describe the DDT biomagnification occurring in an aquatic food chain. State the negative effects the process has on the organisms at the last trophic level of the food chain.
MEDIUM
Biology>Ecology>Ecosystem>Ecosystem- Structure and Function

Select the correct option for the "P" and "Q" in the given chart of a biological magnification of pesticides.

Question Image

EASY
Biology>Ecology>Ecosystem>Ecosystem- Structure and Function
Of the total incident solar radiation of percentage photosynthetically Active Radiation (PAR) captured by the plants
MEDIUM
Biology>Ecology>Ecosystem>Ecosystem- Structure and Function
How is the detritus food chain connected with the grazing food chain in a natural ecosystem?
EASY
Biology>Ecology>Ecosystem>Ecosystem- Structure and Function
State what ‘standing crop’ of a trophic level represents.
EASY
Biology>Ecology>Ecosystem>Ecosystem- Structure and Function
Which ONE of the following options lists the primary energy source(s) for all forms of life on earth?
HARD
Biology>Ecology>Ecosystem>Ecosystem- Structure and Function
With the help of the diagram, explain the flow of energy in an ecosystem.
MEDIUM
Biology>Ecology>Ecosystem>Ecosystem- Structure and Function
Explain the process of the flow of energy in different trophic level of an ecosystem.
EASY
Biology>Ecology>Ecosystem>Ecosystem- Structure and Function
In a food chain, deers are
EASY
Biology>Ecology>Ecosystem>Ecosystem- Structure and Function
Who is secondary consumer in a food chain?
HARD
Biology>Ecology>Ecosystem>Ecosystem- Structure and Function
By which way the flow of energy and nutrients takes place in an ecosystem.
EASY
Biology>Ecology>Ecosystem>Ecosystem- Structure and Function
What is a trophic level in an ecosystem ? What is ‘standing crop’ with reference to it?
EASY
Biology>Ecology>Ecosystem>Ecosystem- Structure and Function
If 20J of energy is trapped at producer level, then how much energy will be available to peacock as food in the following chain?
plant → mice → snake → peacock
EASY
Biology>Ecology>Ecosystem>Ecosystem- Structure and Function
The mass of living material at a trophic level at a particular time is called: