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SCERT Maharashtra Question Bank solutions for 12th Standard HSC Biology Maharashtra State Board 2021 chapter 13 - Organisms and Populations [Latest edition]

Chapters

12th Standard HSC Biology Maharashtra State Board 2021 - Shaalaa.com
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Chapter 13: Organisms and Populations

MCQVery Short AnswerShort Answer 1Short Answer 2Long Answer
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MCQ

SCERT Maharashtra Question Bank solutions for 12th Standard HSC Biology Maharashtra State Board 2021 Chapter 13 Organisms and Populations MCQ

1 Mark

MCQ | Q 1

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

MCQ | Q 1

The number of deaths under ideal conditions is known as ______.

  • Absolute mortality

  • Realized mortality

  • Absolute natality

  • Realized natality

MCQ | Q 2

Community is defined as ______.

  • Group of similar Angiosperms.

  •  interacting populations. 

  • interacting ecosystem

  • group of mangroves.

MCQ | Q 3

Regional and local variations within each biome lead to the formation of variety of ______.

  • Habitats

  • niches

  • species

  • genus

MCQ | Q 4

Maximum absorption of rainfall water is done by  ______.

  • tropical evergreen forest.

  • tropical deciduous forest.

  • coniferous forest.

  • deserts

MCQ | Q 5

The cattle egret and grazing cattle in close association is a classic example of ______.

  • Mutualism

  • Parasitism

  • Commensalism

  • Competition

MCQ | Q 6

The ecological niche of population is a______ A geographical area where it lives.

  • geographical area where it lives.

  • set of conditions and resources that it uses

  • habitat of organisms

  • place of origin of organisms

MCQ | Q 7

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

MCQ | Q 8

Polar bears show hibernation during ______.

  • winter

  • summer

  • rainy season

  • favourable conditions

MCQ | Q 9

In Logistic growth curve lag phase shows______.

  • fast growth

  • initial stage of growth

  • stationary phase of growth

  • diminishing phase of growth

Very Short Answer

SCERT Maharashtra Question Bank solutions for 12th Standard HSC Biology Maharashtra State Board 2021 Chapter 13 Organisms and Populations Very Short Answer

1 Mark

Very Short Answer | Q 1

Define Absolute Mortality.

Very Short Answer | Q 2

How absolute Natality differs from Realized Natality

Very Short Answer | Q 3

What is population ecology?

Very Short Answer | Q 4

Define the term spatial niche.

Very Short Answer | Q 5

What is ESS?

Very Short Answer | Q 6

Define the term Habitat.

Very Short Answer | Q 7

Rearrange the terms population, Biome, Community and Organisms in ecological hierarchy

Very Short Answer | Q 8

What Allen’s rule indicates in adaptation?

Short Answer 1

SCERT Maharashtra Question Bank solutions for 12th Standard HSC Biology Maharashtra State Board 2021 Chapter 13 Organisms and Populations Short Answer 1

2 mark

Short Answer 1 | Q 1

Show the graphical representation of mean annual rainfall with respect to mean annual temperature.

Short Answer 1 | Q 2

Define the term Biome and population.

Short Answer 1 | Q 3

How Habitat differs from Niche?

Short Answer 1 | Q 4

How ‘Temperature’ as an abiotic factor plays a role in ecology?

Short Answer 1 | Q 5

Define the term Adaptation. State its two advantages.

Short Answer 1 | Q 6

What is Mortality? What are its two types?

Short Answer 1 | Q 7

Define the term population interactions. State its two types.

Short Answer 2

SCERT Maharashtra Question Bank solutions for 12th Standard HSC Biology Maharashtra State Board 2021 Chapter 13 Organisms and Populations Short Answer 2

3 mark

Short Answer 2 | Q 1

Define Niche with its different types.

Short Answer 2 | Q 2

Define mutualism. Explain its one type.

Short Answer 2 | Q 3

Explain any three important characteristics of population.

Short Answer 2 | Q 4

Explain different population interactions with examples.

Short Answer 2 | Q 5

What is Commensalism? Explain it with suitable example.

Short Answer 2 | Q 6

Explain the role of any three abiotic factors affecting the environment.

Short Answer 2 | Q 7

Explain different types of growth models.

Long Answer

SCERT Maharashtra Question Bank solutions for 12th Standard HSC Biology Maharashtra State Board 2021 Chapter 13 Organisms and Populations Long Answer

4 Mark

Long Answer | Q 1

Define population growth. Explain different types of age pyramids.

Long Answer | Q 2

Which are different biotic and abiotic factors involved in ecology and how they play their role?

Long Answer | Q 3

What is population interaction? Explain the interactions in Mutualism and Competition.

Chapter 13: Organisms and Populations

MCQVery Short AnswerShort Answer 1Short Answer 2Long Answer
12th Standard HSC Biology Maharashtra State Board 2021 - Shaalaa.com

SCERT Maharashtra Question Bank solutions for 12th Standard HSC Biology Maharashtra State Board 2021 chapter 13 - Organisms and Populations

SCERT Maharashtra Question Bank solutions for 12th Standard HSC Biology Maharashtra State Board 2021 chapter 13 (Organisms and Populations) include all questions with solution and detail explanation. This will clear students doubts about any question and improve application skills while preparing for board exams. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. Shaalaa.com has the Maharashtra State Board 12th Standard HSC Biology Maharashtra State Board 2021 solutions in a manner that help students grasp basic concepts better and faster.

Further, we at Shaalaa.com provide such solutions so that students can prepare for written exams. SCERT Maharashtra Question Bank textbook solutions can be a core help for self-study and acts as a perfect self-help guidance for students.

Concepts covered in 12th Standard HSC Biology Maharashtra State Board 2021 chapter 13 Organisms and Populations are Organisms and the Environment Around, Population, Population Interactions, Habitat and Its Types, Niche, Structure of an Ecosystem, Adaptations and Its Types.

Using SCERT Maharashtra Question Bank 12th Board Exam solutions Organisms and Populations exercise by students are an easy way to prepare for the exams, as they involve solutions arranged chapter-wise also page wise. The questions involved in SCERT Maharashtra Question Bank Solutions are important questions that can be asked in the final exam. Maximum students of Maharashtra State Board 12th Board Exam prefer SCERT Maharashtra Question Bank Textbook Solutions to score more in exam.

Get the free view of chapter 13 Organisms and Populations 12th Board Exam extra questions for 12th Standard HSC Biology Maharashtra State Board 2021 and can use Shaalaa.com to keep it handy for your exam preparation

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