Population interactions, in which both the species get benefited:
- AParasitism
- BCompetition
- ✓Mutualism
- DPredation
Answer: C.
View full solution →Question types
Organisms and Populations question types
74 questions across 6 question groups — pick any mix to generate a BIOLOGY paper with step-by-step answer keys.
74
Questions
6
Question groups
5
Question types
01
M.C.Q (0.5 Marks)
19 Q→02Fill in blanks.
10 Q→031 Marks Question
21 Q→041.5 Marks Questions
9 Q→053 Marks Question
8 Q→064 Marks Questions
7 Q→Sample Questions
Organisms and Populations questions
One sample from each question group in this chapter. Select any group above to see the full set with answer keys.
Correct set of processes which decreases the population density are:
- ANatality, Emigration
- BMortality, Immigration
- CNatality, Immigration
- ✓Mortality, Emigration
Answer: D.
View full solution →Select the statement which explains best parasitism.
- AOne organism is benefitted.
- BBoth the organisms are benefitted.
- COne organism is benefitted, other is not affected.
- ✓One organism in benefitted, other is affected.
Answer: D.
View full solution →Some important attributes of the population which are not important for the individuals are:
(i) Birth rate and death rate
(ii) Male and female
(iii) Birth and death
(iv) Sex ratio
(i) Birth rate and death rate
(ii) Male and female
(iii) Birth and death
(iv) Sex ratio
- AOnly (i)
- BOnly (ii)
- C(ii) and (iii)
- ✓(i) and (iv)
Answer: D.
View full solution →Population density increases
- ABy rapid death rate
- BEmigration
- ✓Immigration
- DNone of these
Answer: C.
View full solution →_________ employs pseudo-copulation to get pollination.
Species adopt the process of _________ to avoid inter-specific competition.
Controlling invasive populations of red ants by ruphus woodpecker is an example of _________.
The Abingdon tortoise became extinct from the Galapogos island within ten years due to the high browsing capacity of goats. This is called _________.
Space parasites are called They receive only support from the host plant, hence they are also examples of _________.
Define : Community
Define : Population
Identify the pyramid given above and write down the special features on the basis of which you have identified it.
Mammals are capable of maintaining homeostasis but few small animals are capable to save their lives in Polar region. Write its reason.
Write any four adaptations found in xerophytic plants to reduce transpiration.
Define the terms and give one example for each: Interspecific Competition
Define the terms and give one example for each: Mutualism
Define the terms and give one example for each: Camouflage
Define the terms and give one example for each: Commensalism
An orchid plant is growing on the branch of mango tree. How do you describe this interaction between the orchid and the imango tree?
Explain the reason for population growth explosion.
Define the terms and give one example for each: Parasitism
Name important defence mechanisms in plants against herbivory.
If a population growing exponentially double in size in 3 yours, what is the intrinsic rate of increase (r) of the population?
Explain in which fundamental processes, the density of a population in a given habitat increases are decreases during a given period.
Describe the logistic population growth.
Write three important characteristics of population.
With the help of suitable diagram describe the logistic population growth curve.
What is the ecological principle behind the biological control method of managing with pest insects?
List the attributes that populations possess but not individuals.
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