Tamil Nadu Board 12th Standard Bio-Zoology - Chapter 10: Book Back Answers and Solutions
This post covers the book back answers and solutions for Chapter 10 – Bio-Zoology from the Tamil Nadu State Board 12th Standard Bio-Zoology textbook. These detailed answers have been carefully prepared by our expert teachers at KalviTips.com.
We have explained each answer in a simple, easy-to-understand format, highlighting important points step by step under the relevant subtopics. Students are advised to read and memorize these subtopics thoroughly. Once you understand the main concepts, you’ll be able to connect other related points with real-life examples and confidently present them in your tests and exams.
By going through this material, you’ll gain a strong understanding of Bio-Zoology Chapter 10 along with the corresponding book back questions and answers (PDF format).
Question Types Covered:
- 1 Mark Questions: Choose the correct answer, Fill in the blanks, Identify the correct statement, Match the following
- 2 Mark Questions: Answer briefly
- 3, 4, and 5 Mark Questions: Answer in detail
All answers are presented in a clear and student-friendly manner, focusing on key points to help you score full marks.
All the best, Class 12 students! Prepare well and aim for top scores. Thank you!
Chapter 10: Organisms and Population
I. Multiple Choice Questions
a) Biome
b) Ecosystem
c) Territory
d) Biotic factors
Answer Key:
a) Biome
2. Organisms which can survive a wide range of temperature are called
a) Ectotherms
b) Eurytherms
c) Endotherms
d) Stenotherms
Answer Key:
d) Stenotherms
3. The interaction in nature, where one gets benefit on the expense of other is_________
a) Predation
b) Mutualism
c) Amensalism
d) Commensalism
Answer Key:
b) Mutualism
4. Predation and parasitism are which type of interactions?
a) (+,+)
b) (+, O)
c) (--, --)
d) (+, --)
Answer Key:
d) (+, --)
5. Competition between species leads to
a) Extinction
b) Mutation
c) Amensalism
d) Symbiosis
Answer Key:
a) Extinction
6. Which of the following is an r-species
a) Human
b) Insects
c) Rhinoceros
d) Whale
Answer Key:
b) Insects
7. Match the following and choose the correct combination from the options given below.
Column I Column II
A. Mutalism 1. Lion and deer
B. Commensalism 2. Round worm and man
C. Parasitism 3. Birds compete with squirrels for nuts
D. Competition 4. Sea anemone on hermit crab
E. Predation 5. Barnacles attached to Whales
a) A- 4, B-5, C-2, D –3, E-1
b) A- 3, B-1, C-4, D – 2, E-5
c) A- 2, B-3, C-1, D – 5, E-4
d) A- 5, B-4, C-2, D – 3, E-1
Answer Key:
a) A- 4, B-5, C-2, D –3, E-1
8. The figure given below is a diagrammatic representation of response of organisms to abiotic factors. What do A, B and C represent respectively.
|
S.No
|
A
|
B
|
C
|
|
a.
|
Conformer
|
Regulator
|
Partial
Regulator
|
|
b.
|
Regulator
|
Partial
Regulator
|
Conformer
|
|
c.
|
Partial
Regulator
|
Regulator
|
Conformer
|
|
d.
|
Regulator
|
Conformer
|
Partial
Regulator
|
a. Conformer Regulator Partial Regulator
9. The relationship between sucker fish and shark is_____________
a) Competition
b) Commensalism
c) Predation
d) Parasitism
Answer Key:
b) Commensalism
10. Which of the following is correct for
a) Large number of progeny with small size
b) large number of progeny with large size
c) small number of progeny with small size
d) small number of progeny with large size
Answer Key:
a) Large number of progeny with small size
11. Animals that can move from fresh water to sea called as___________
a) Stenothermal
b) Eurythermal
c) Catadromous
d) Anadromous
Answer Key:
c) Catadromous
12. Some organisms are able to maintain homeostasis by physical means________
a) Conform
b) Regulate
c) Migrate
d) Suspend
Answer Key:
b) Regulate
II. Short answer questions
12th bio zoolgy III. Long answer questions
12th bio zology
0 Comments:
Post a Comment