EASY
Earn 100

With respect to herbivores, read the following statements and choose the correct option.

Statement 1: Herbivores are also called as first order consumers.
Statement 2: Herbivores obtain their food directly from plants.

50% studentsanswered this correctly

Important Questions on Ecosystem

EASY
Biology>Ecology and Environment>Ecosystem>Energy Flow in an Ecosystem
Define standing crop.
EASY
Biology>Ecology and Environment>Ecosystem>Energy Flow in an Ecosystem
What is a trophic level in an ecosystem ? What is ‘standing crop’ with reference to it?
MEDIUM
Biology>Ecology and Environment>Ecosystem>Energy Flow in an Ecosystem
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.
EASY
Biology>Ecology and Environment>Ecosystem>Energy Flow in an Ecosystem

Write the differences between 

Food chain and food web

EASY
Biology>Ecology and Environment>Ecosystem>Energy Flow in an Ecosystem
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
MEDIUM
Biology>Ecology and Environment>Ecosystem>Energy Flow in an Ecosystem
Explain the process of the flow of energy in different trophic level of an ecosystem.
EASY
Biology>Ecology and Environment>Ecosystem>Energy Flow in an Ecosystem
Explain the role of the ‘first trophic level’ in an ecosystem.
EASY
Biology>Ecology and Environment>Ecosystem>Energy Flow in an Ecosystem
In a food chain, deers are
EASY
Biology>Ecology and Environment>Ecosystem>Energy Flow in an Ecosystem

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 and Environment>Ecosystem>Energy Flow in an Ecosystem
Of the total incident solar radiation of percentage photosynthetically Active Radiation (PAR) captured by the plants
EASY
Biology>Ecology and Environment>Ecosystem>Energy Flow in an Ecosystem
Explain the flow of energy in an ecosystem with the help of a diagram.
EASY
Biology>Ecology and Environment>Ecosystem>Energy Flow in an Ecosystem
The mass of living material at a trophic level at a particular time is called:
EASY
Biology>Ecology and Environment>Ecosystem>Energy Flow in an Ecosystem
State what ‘standing crop’ of a trophic level represents.
MEDIUM
Biology>Ecology and Environment>Ecosystem>Energy Flow in an Ecosystem
What do detritus food chains begin with?
HARD
Biology>Ecology and Environment>Ecosystem>Energy Flow in an Ecosystem
With the help of the diagram, explain the flow of energy in an ecosystem.
HARD
Biology>Ecology and Environment>Ecosystem>Energy Flow in an Ecosystem
By which way the flow of energy and nutrients takes place in an ecosystem.
MEDIUM
Biology>Ecology and Environment>Ecosystem>Energy Flow in an Ecosystem

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

Question Image

MEDIUM
Biology>Ecology and Environment>Ecosystem>Energy Flow in an Ecosystem
How is the detritus food chain connected with the grazing food chain in a natural ecosystem?
EASY
Biology>Ecology and Environment>Ecosystem>Energy Flow in an Ecosystem
Which ONE of the following options lists the primary energy source(s) for all forms of life on earth?
HARD
Biology>Ecology and Environment>Ecosystem>Energy Flow in an Ecosystem
A food chain always starts with_____