Organisms and Populations: Online MCQ Test – 2 9

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NEET questions (MCQS) on Organisms and Population | Solve important NEET MCQs on Organisms and Population and get your instant score and solutions | Test No. 02

Organisms and Environment: Quiz - 2

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Question 1
Competition is severe in a population that has a distribution which is
A
Random
B
Uniform
C
Irregular
D
Non-random
Question 2
Consider the following four conditions (a - d) and select the correct pair of them as adaptation to environment in desert lizards. The conditions (a) Burrowing in soil to escape high temperature (b) Losing heat rapidly from the body during high temperature (c) Bask in sun when temperature is low (d) Insulating body due to thick fatty dermis
A
(a), (b)
B
(c), (d)
C
(a), (c)
D
(b), (d)
Question 3
In a population, if the rate of addition of new members is higher than the rate of individuals lost, it shows
A
Exponential growth
B
Declined growth
C
Zero population growth
D
none of these
Question 4
Which of the followings take part in symbiosis of lichen?
A
Fungus-Fungus
B
Alga-Alga
C
Alga-Fungus
D
Fungus-Gymnosperm
Question 5
In an ecosystem Biotic factors affect the survival of an organism in that ecosystem. They include
A
competition for food and water
B
competition for shelter
C
co-operation to help find food
D
All of these
Question 6
Plant succession occurring in a sandy area is
A
Xerosere
B
Halosere
C
Psammosere
D
Hydrosere
Question 7
The maximum amount of water that a soil can hold, by capillary action is called
A
Wilting point
B
Water potential
C
Field capacity
D
Osmotic potential
Question 8
In ecological succession from pioneer to climax community, the biomass shell
A
No relation
B
Increase and then decrease
C
Decrease
D
Increase continuously
Question 9
Individuals of a species which occur in a particular area constitute
A
Population
B
Fauna
C
Flora
D
Flora and Fauna
Question 10
The role of an organism in the ecological system is known as
A
Niche
B
Habitat
C
Herbivory
D
Interaction
Question 11
Information about birth rate, death rate, sex ratio, age distribution etc. of a population is obtained from
A
Mortality rate
B
Life table
C
Natality table
D
Both (A) and (C)
Question 12
Insectivorous plants are adopted to soils
A
Deficient in nitrogenous compounds
B
Deficient in water
C
Rich in water
D
Deficient in trace elements
Question 13
Large Woody Vines are more commonly found in
A
Alpine forests
B
Temperate forests
C
Mangroves
D
Tropical rainforests
Question 14
Organisms that can tolerate and thrive in a wide range of temperatures are called
A
Eukaryotic organisms
B
Stenothermal
C
Eurythermal
D
None of these
Question 15
Pheromones, the chemical messengers produced by certain exocrine glands of skin, affect
A
Skin color
B
Breast
C
Genitalia
D
Mutual behaviour of members of a species
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9 thoughts on “Organisms and Populations: Online MCQ Test – 2”

  • Reply ↓
    kamal

    ans of ques.10-All of the organisms within an ecosystem have different roles. These roles are called niches. Organisms can have more than one niche and knowing the niches of an organism can help to explain why they act and interact the way they do.

  • Reply ↓
    Anirban ghosh

    excellent questions i hope all od this questions are going to come in the exam.