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Chapters
2: Reproduction in Lower and Higher Animals
3: Inheritance and Variation
4: Molecular Basis of Inheritance
5: Origin and Evolution of Life
6: Plant Water Relation
7: Plant Growth and Mineral Nutrition
8: Respiration and Circulation
9: Control and Co-ordination
10: Human Health and Diseases
11: Enhancement of Food Production
12: Biotechnology
▶ 13: Organisms and Populations
14: Ecosystems and Energy Flow
15: Biodiversity, Conservation and Environmental Issues
![SCERT Maharashtra solutions for Biology [English] 12 Standard HSC chapter 13 - Organisms and Populations - Shaalaa.com](/images/biology-english-12-standard-hsc_6:1b94e35560a844c094a1f846c467d1b4.biology "SCERT Maharashtra solutions for Biology [English] 12 Standard HSC chapter 13 - Organisms and Populations")
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Solutions for Chapter 13: Organisms and Populations
Below listed, you can find solutions for Chapter 13 of Maharashtra State Board SCERT Maharashtra for Biology [English] 12 Standard HSC.
SCERT Maharashtra solutions for Biology [English] 12 Standard HSC 13 Organisms and Populations MCQ
1 Mark
An association of individuals of different species living in the same habitat and having functional interactions is called as ______.
biotic community.
population
ecosystem
tropical niche
Community is defined as ______.
Group of similar Angiosperms.
interacting populations.
interacting ecosystem
group of mangroves.
Regional and local variations within each biome lead to the formation of variety of ______.
Habitats
niches
species
genus
Maximum absorption of rainfall water is done by ______.
tropical evergreen forest.
tropical deciduous forest.
coniferous forest.
deserts
The cattle egret and grazing cattle in close association is a classic example of ______.
Mutualism
Parasitism
Commensalism
Competition
The ecological niche of population is a __________.
geographical area where it lives.
set of conditions and resources that it uses
habitat of organisms
place of origin of organisms
Tropical dense forests are due to _______________.
high rainfall and low temperature
high rainfall and warm temperature
low rainfall and high temperature
low rainfall and low temperature
Polar bears show hibernation during ______.
winter
summer
rainy season
favourable conditions
In Logistic growth curve lag phase shows______.
fast growth
initial stage of growth
stationary phase of growth
diminishing phase of growth
The number of deaths under ideal conditions is known as ______.
Absolute mortality
Realized mortality
Absolute natality
Realized natality
SCERT Maharashtra solutions for Biology [English] 12 Standard HSC 13 Organisms and Populations Very Short Answer
1 Mark
Define Absolute Mortality.
How absolute Natality differs from Realized Natality
What is population ecology?
Define the term spatial niche.
What is ESS?
Define the term Habitat.
Rearrange the terms population, Biome, Community and Organisms in ecological hierarchy
What Allen’s rule indicates in adaptation?
SCERT Maharashtra solutions for Biology [English] 12 Standard HSC 13 Organisms and Populations Short Answer 1
2 mark
Show the graphical representation of mean annual rainfall with respect to mean annual temperature.
Define the term Biome.
Define Population.
How Habitat differs from Niche?
How ‘Temperature’ as an abiotic factor plays a role in ecology?
Define the term Adaptation. State its two advantages.
What is Mortality? What are its two types?
Define the term population interactions. State its two types.
SCERT Maharashtra solutions for Biology [English] 12 Standard HSC 13 Organisms and Populations Short Answer 2
3 mark
Define Niche.
Explain the different types of niche.
Define mutualism.
Explain one type of mutualism.
Explain any three important characteristics of population.
Explain different population interactions with examples.
What is Commensalism? Explain it with suitable example.
Explain the role of any three abiotic factors affecting the environment.
Explain different types of growth models.
SCERT Maharashtra solutions for Biology [English] 12 Standard HSC 13 Organisms and Populations Long Answer
4 Mark
Define population growth. Explain different types of age pyramids.
Which are different biotic and abiotic factors involved in ecology and how they play their role?
What is population interaction? Explain the interactions in Mutualism and Competition.
Solutions for 13: Organisms and Populations
SCERT Maharashtra solutions for Biology [English] 12 Standard HSC chapter 13 - Organisms and Populations
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Concepts covered in Biology [English] 12 Standard HSC chapter 13 Organisms and Populations are Organisms and the Environment Around, Population, Population Interactions, Habitat, Niche, Structure and Function of an Ecosystem, Adaptations and Its Types, Organisms and Populations.
Using SCERT Maharashtra Biology [English] 12 Standard HSC solutions Organisms and Populations exercise by students is an easy way to prepare for the exams, as they involve solutions arranged chapter-wise and also page-wise. The questions involved in SCERT Maharashtra Solutions are essential questions that can be asked in the final exam. Maximum Maharashtra State Board Biology [English] 12 Standard HSC students prefer SCERT Maharashtra Textbook Solutions to score more in exams.
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