इयत्ता पाचवी ईव्हीएस भाग २ उत्क्रांती मराठी स्वाध्याय PDF

 

इयत्ता पाचवी ईव्हीएस भाग २ उत्क्रांती मराठी स्वाध्याय PDF

या लेखात, आम्ही ईव्हीएस भाग २ उत्क्रांती विषयासाठी इयत्ता पाचवी मराठी सोल्यूशन्स देऊ. इयत्ता पाचवी मधील विद्यार्थी पाठ्यपुस्तकांमध्ये उपस्थित असलेल्या व्यायामांसाठी प्रश्न आणि उत्तरे डाउनलोड आणि कॉपी करण्यास सक्षम असतील.

इयत्ता पाचवी ईव्हीएस भाग २ उत्क्रांतीाच्या पुस्तकात महाराष्ट्र बोर्डाच्या अभ्यासक्रमातील सर्व प्रश्नांचा समावेश आहे. येथे सर्व प्रश्न पूर्ण स्पष्टीकरणासह सोडवले आहेत आणि डाउनलोड करण्यासाठी विनामूल्य उपलब्ध आहेत. महाराष्ट्र बोर्ड इयत्ता पाचवी ईव्हीएस भाग २ उत्क्रांतीाचे पुस्तक खाली दिले आहे. आम्‍हाला आशा आहे की आमच्‍या इयत्‍ता पाचवी वीच्‍या ईव्हीएस भाग २ उत्क्रांतीाचे पुस्‍तक तुमच्‍या अभ्यासात मदत करेल! जर तुम्हाला आमचे इयत्ता पाचवी चे पुस्तक आवडले असेल तर कृपया ही पोस्ट शेअर करा.

इयत्ता पाचवी ईव्हीएस भाग २ उत्क्रांती स्वाध्याय

मंडळाचे नाव	Maharashtra Board
ग्रेडचे नाव	पाचवी
विषय	ईव्हीएस भाग २ उत्क्रांती
वर्ष	2022
स्वरूप	PDF/DOC
प्रदाता	hsslive.co.in
अधिकृत संकेतस्थळ	mahahsscboard.in

समाधानासह महाराष्ट्र बोर्ड आठवा स्वाध्याय कसे डाउनलोड करायचे?

महाराष्ट्र बोर्ड पाचवी स्वाध्याय PDF डाउनलोड करण्यासाठी खालील स्टेप्स फॉलो करा:

1. वेबसाइट- Hsslive ला भेट द्या. 'स्वाध्याय' लिंकवर क्लिक करा.
2. महा बोर्ड पाचवी स्वाध्याय PDF पहा.
3. आता महाराष्ट्र बोर्ड पाचवी स्वाध्याय तपासा.
4. डाउनलोड करा आणि भविष्यातील संदर्भांसाठी जतन करा.

इयत्ता पाचवी ईव्हीएस भाग २ उत्क्रांती स्वाध्याय उपाय

इयत्ता पाचवी स्वाध्याय मधील विद्यार्थी खालील लिंक्सवरून ईव्हीएस भाग २ उत्क्रांतीाचे उपाय डाउनलोड करू शकतील.

5th Std EVS 2 Digest Chapter 4 Evolution Textbook Questions and Answers

 

1. Fill in the blank.

Question a.
The first systematic explanation of the concept of evolution was given by ………………… .
Charles Darwin
Willard Libby
Louis Leakey
Answer:
The first systematic explanation of the concept of evolution was given by Charles Darwin.

Question b.
……………… are the most evolved animals among vertebrates
Aquatic animals
Amphibians
Mammals
Answer:
Mammals are the most evolved animals among vertebrates

2. Answer the question in one sentence.

What do we call animals which live in water and also on land?
Answer:
Amphibians live in water and also on land.

Where did the first humans appear?
Answer:
The first human appeared on the African continent.

3. Give reasons for the following:

Question a.
The species of dinosaurs, which were enormous in size, suddenly became extinct.
Answer:
The species of dinosaurs, which were enormous in size, suddenly became extinct, because –

1. According to Darwin, the species that cannot adapt to environmental changes become extinct in the process of evolution.
2. Some sudden natural disaster or environmental change is believed to be responsible for the extinction of enormous dinosaurs.

Question b.
In the course of time, a new species with characteristics different from the original species is created.
Answer:
In the process of survival by adapting to environmental changes, certain internal physical changes occur in some species of animals.
Over a period of time, these changes become inherited characteristics seen in all subsequent generations. Thus, in the course of time, a new species with characteristics different from the original species is created.

4. Fill in the blanks in the concept chart given below.

Question 1.
Fill in the blanks in the concept chart given below.

Answer:

Activity :

Question 1.
Make a model of a dinosaur.

Project :

Queston 1.
Collect pictures of invertebrates and vertebrates. Stick them in a notebook and write down their characteristics.

Environmental Studies Part 2 Standard 5th Solutions Chapter 4 Evolution Additional Important Questions and Answers

Fill in the blanks :

1. The word ……… generally means a gradual and continuous change.
2. In the process of survival by adapting to environmental changes, certain internal ……………. changes occur in some animals of a species.
3. Sometimes during evolution, the original species becomes ………..
4. During evolution, sometimes more than one species evolve from the ………….. species.
5. The first systematic explanation of the concept of evolution was given by …………
6. Species which are capable of adapting to environmental changes are able to …………
7. Species that cannot adapt to environmental changes become ………….
8. …………………… means a ‘terrible lizard’.
9. Some sudden natural………………….. is believed to be responsible for the extinction of Dinosaurs.
10. Fossils of dinosaurs with ………………… have been discovered
11. It is supposed that some species of two legged and winged dinosaurs evolved into …………..
12. The ……………………… organisms evolved gradually and various classes of plants and animals came into being.
13. Animals without a backbone are called ……………
14. Animals which have a backbone are called ……….
15. …………………….. are animals which live in water and also on land.
16. Animals which crawl are called ………………..
17. A mammals baby is …………………. on the mother’s milk for some time after birth.
18. The platypus and anteater are also considered as ……………
19. ………………… are somewhat like humans in appearance.
20. Apes mostly lived on ………….
21. Some ape species that evolved give rise to ………….. species.
22. The first human species is called the …………… man.
23. Primitive means ………………..

Answer:

1. evolution
2. physical
3. extinct
4. original
5. Charles Darwin
6. survive
7. extinct
8. Dinosaurs
9. disaster
10. wings
11. birds
12. multicellular
13. invertebrates
14. Vertebrates
15. Amphibians
16. Reptiles
17. fed
18. mammals
19. Apes
20. trees
21. human
22. primitive
23. the first

Match the columns :

Question 1.

Column ‘A’	Column ‘B’
1. Charles Darwin	a. a gradual and continuous change
2. Evolution	b. means ‘terrible lizard’
3. Dinosaur	c. gradually evolved into plants and animals
4. Multicellular	d. explained the concept of evolution
5. Invertebrates	e. frogs
6. Aquatic	f. snake
7. Amphibians	g. cow
8. Reptiles	h. snails
9. Mammals	i. fish

Answer:

Column ‘A’	Column ‘B’
1. Charles Darwin	d. explained the concept of evolution
2. Evolution	a. a gradual and continuous change
3. Dinosaur	b. means ‘terrible lizard’
4. Multicellular	c. gradually evolved into plants and animals
5. Invertebrates	e. frogs
6. Aquatic	i. fish
7. Amphibians	e. frogs
8. Reptiles	f. snake
9. Mammals	g. cow

Answer each question in one sentence:

Question 1.
What does evolution mean?
Answer:
Evolution means a gradual and continuous change

Question 2.
What changes occur in some species, during the process of survival?
Answer:
In the process of survival, by adapting to environmental changes, certain internal physical changes occur in some animals of a species.

Question 3.
What happens to the internal changes over a period of time?
Answer:
Over a period of time, these internal changes become inherited characteristics seen in all generations.

Question 4.
When does an original species become extinct?
Answer:
During evolution, a new species with characteristics different from the original may be created. Sometimes the original species becomes extinct.

Question 5.
Name the scientist who explained the concept of evolution.
Answer:
The first scientist to give us a systematic explanation of the concept of evolution was Charles Darwin

Question 6.
Which species are able to survive?
Answer:
Species which are capable of adapting to environmental changes are able to survive.

Question 7.
Which species become extinct in the process of evolution?
Answer:
The species that cannot adapt to environmental changes become extinct in the process of evolution

Question 8.
What does dinosaur mean?
Answer:
Dinosaur means a ‘terrible lizard’.

Question 9.
How did the dinosaurs suddenly become extinct?
Answer:
Some sudden natural disaster or environmental change is believed to be responsible for the extinction of dinosaurs.

Question 10.
Why do we suppose that some species of dinosaurs have evolved into birds?
Answer:
Fossils of dinosaurs with wings have been discovered. Hence, it is supposed that some species of two-legged and winged dinosaurs evolved into birds.

Question 11.
How did plants and animals come into being?
Answer:
Unicellular organisms gave rise to multicellular organisms which in turn gradually evolved into various classes of plants and animals.

Question 12.
What are invertebrates?
Answer:
Animals without a backbone are called ‘invertebrates’. For example: a snail.

Question 13.
What are vertebrates?
Answer:
Animals which have a backbone are called vertebrates. For example: A cow

Question 14.
What do we call animals which live in water and also on land?
Answer:
Animals which live in water and also on land are called ‘Amphibians’. For example: Frog

Question 15.
What are Aquatic animals?
Answer:
Living organisms that live only in water are called ‘Aquatic animals’. For example Fish

Question 16.
What are Reptiles?
Answer:
Animals which crawl are called Reptiles. For example: Snake

Question 17.
Which species are the most evolved animals among vertebrates?
Answer:
Mammals are the most evolved animals among vertebrates.

Question 18.
Where do apes mostly live?
Answer:
Apes mostly lived on trees.

Question 19.
How did the Human species evolve?
Answer:
Some ape species found in grasslands were forced to move around on ground. These species evolved gradually and in time gave rise to human species.

Question 20.
What is the first human species called?
Answer:
The first human species is called the ‘primitive man’.

Question 21.
What does primitive mean?
Answer:
‘Primitive’ means ‘the first’.

Question 22.
Who are Apes?
Answer:
Apes are somewhat like humans in appearance.

Give reasons for the following :

Question 1.
In the course of time, a new species with characteristics different from the original species is created. Answer:

1. In the process of survival by adapting to environmental changes, certain physical changes occur in some animals of a species.
2. These internal changes become inherited characteristics in the following generations.
3. Thus a new species with characteristics different from the original is created.

Question 2.
A frog is an amphibian.
Answer:

1. Animals which are able to live in water and also on land are called amphibiAnswer:
2. Therefore a frog is considered an amphibian.

Question 3.
The platypus and some species of anteaters are considered mammals.
Answer:

1. Platypus and some species of anteaters are exceptions to the characteristics of mammals.
2. Though they lay eggs, they suckle their young ones.
3. Therefore, they are considered mammals.

Answer the following questions in brief :

Question 1.
Explain the concept Evolution as stated by Charles Darwin.
Answer:

1. Charles Darwin explained ‘evolution’ in the following manner. In the process of survival by adapting to environmental changes, certain internal physical changes occur in some animals of a species.
2. Over a period of time, these internal changes become inherited characteristics of the following generation.
3. Thus a new evolved species with characteristics different from the original is created
4. Sometimes the original species become extinct.
5. Sometimes more than one species evolve from the original one.

Question 2.
Give the characteristics of mammals.
Answer:
The characteristics of most of the mammals are as follows:

1. Growth of the baby in the mother’s womb, sometime before birth.
2. The baby is fed on the mother’s milk for sometime after birth.

Question 3.
How and where did the human species evolve?
Answer:

1. Apes are somewhat like humans in appearance
2. They mostly lived on trees. Those species of apes which continued to live on trees retained their original ape like form.
3. Some ape species found in grasslands were forced to move on the ground.
4. These species evolved gradually, giving rise to the human species.
5. This happened first on the ‘African continent’.

Question 4.
How did various classes of plants and animals come into being?
Answer:

1. Life on earth began with unicellular organisms known as protozoa.
2. These unicellular organisms gave rise to multicellular living things.
3. Multicellular organisms evolved gradually and thus various classes of plants and animals came into being

Question 5.
How did birds form from dinosaurs?
Answer:

1. Dinosaurs became extinct because of some sudden natural disaster or environmental change
2. Fossils of dinosaurs with wings have been discovered
3. It is thus believed that some species of two legged and winged dinosaurs evolved into birds.

Question 6.
How many and which are the stages of evolution of animals?
Answer:
There are two stages of evolution of animals. They are:

1. Invertebrates: These are animals without a backbone.
2. Vertebrates: Animals which have a backbone are vertebrates. Aquatic animals, amphibians, birds, reptiles and mammals are all vertebrates.

Glossary :

1. gradual : taking place in stages over an extended period.
2. adapt : become adjusted to new conditions.
3. extinction : the process on state of becoming extinct.
4. species : group of living organisms
5. survival : the state or fact of surviving
6. inherited : receive or be left with something from predecessor

इयत्ता पाचवी evs स्वाध्याय उपाय

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निष्कर्ष

आम्हाला आशा आहे की महाराष्ट्रावरील हा लेख तुम्हाला 'पाचवी ईव्हीएस भाग २ उत्क्रांती स्वाध्याय' मदत करेल. तुम्हाला काही प्रश्न असल्यास, त्यांना खाली टिप्पणी विभागात मोकळ्या मनाने पोस्ट करा. आम्ही लवकरात लवकर तुमच्याकडे परत येऊ.