Niche is the position occupied by the species in an environment. It refers to the occupation of the species in an ecosystem. Niche determines the survival, requirement for shelter and food, and its reproduction process a species.

the functional role played by organism where it lives

the range of temperature that the organism needs to live

the physical space where an organism lives

all the biological factors in the organism's environment

Match the following: Set-I Set-II (A) Endosmosis (I) High altitude adaptation (B) Exosmosis (II) Desert adaptation (C) Metabolic water (III) Problem for fresh water animal (D) Increase in the RBC production (IV) Problem for marine animals The correct match is

A = III , B = IV , C = II , D = I

A = I , B = III , C = IV , D = II

A = II , B = III , C = IV , D = I

A = III , B = II , C = I , D = IV

In submerged hydrophytes entry of CO 2 is through

Both Epidermis as carbonates only and Epidermis as bicarbonates only

EASY

Earn 100

What are 3 facts about the taiga biome?

Important Questions on Organisms and Populations

EASY

Biology>Ecology and Environment>Organisms and Populations>Organisms and Its Environment

Define Niche.

MEDIUM

Biology>Ecology and Environment>Organisms and Populations>Organisms and Its Environment

Give three adaptations in organisms by which they avoid predation.

EASY

Biology>Ecology and Environment>Organisms and Populations>Organisms and Its Environment

Define stenothermal organisms.

EASY

Biology>Ecology and Environment>Organisms and Populations>Organisms and Its Environment

Following are the responses of different animals to various abiotic factors. Describe each one with the help of an example.

Migrate

EASY

Biology>Ecology and Environment>Organisms and Populations>Organisms and Its Environment

Niche is

EASY

Biology>Ecology and Environment>Organisms and Populations>Organisms and Its Environment

In an ecosystem, each organism occupies a particular place and has a functional role and it is known as

EASY

Biology>Ecology and Environment>Organisms and Populations>Organisms and Its Environment

Match the following:

	Set-I		Set-II
(A)	Endosmosis	(I)	High altitude adaptation
(B)	Exosmosis	(II)	Desert adaptation
(C)	Metabolic water	(III)	Problem for fresh water animal
(D)	Increase in the $RBC$ production	(IV)	Problem for marine animals

The correct match is

MEDIUM

Biology>Ecology and Environment>Organisms and Populations>Organisms and Its Environment

Identify the elements which lead to much variation in the physical and chemical conditions of different habitats.
a) Only components such as Temperature, water, light and soil.
b) Only components such as pathogens, parasites, predators and competitors of the organism with which they interact constantly.
c) The physiology and anatomy of organisms
d) Both a and b

HARD

Biology>Ecology and Environment>Organisms and Populations>Organisms and Its Environment

Match the following column