Lamarck’s Theory of Evolution
According to Lamarck, the environment directly influences the modification of the organs in organisms. A constant use and disuse of organs leads to its modification in the form and less used structures reduced and ultimately gets lost. This note gives us the information about Theories of evolution and its use.
Summary
According to Lamarck, the environment directly influences the modification of the organs in organisms. A constant use and disuse of organs leads to its modification in the form and less used structures reduced and ultimately gets lost. This note gives us the information about Theories of evolution and its use.
Things to Remember
- According to Lamarck, the environment directly influences the modification of the organs in organisms.
- A constant use and disuse of organs leads to its modification in the form and less used structures reduced and ultimately gets lost.
- The characters obtained by an organism by an organism by direct environmental effect and use and disuse of the organs are called acquired characters.
MCQs
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Subjective Questions
Q1:
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I ______ English every day. (Study, Simple present)
Type: Very_short Difficulty: Easy
Q2:
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I ______ English now. (Study, Present continuous)
Type: Very_short Difficulty: Easy
Q3:
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______ English in several different countries. (Study, Present perfect)
Type: Very_short Difficulty: Easy
Q4:
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______ English for 5 years (Study, Present perfect continuous)
Type: Very_short Difficulty: Easy
Q5:
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Two years ago, ______ English in England. (Study, Simple past)
Type: Very_short Difficulty: Easy
Q6:
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I ______English when you called yesterday. (Study, Past continuous)
Type: Very_short Difficulty: Easy
Q7:
Fill in the blanks with the different forms of verb.
I ______ English for 5 years before I moved to the U.S. (Study, Past perfect continuous)
Type: Very_short Difficulty: Easy
Q8:
Fill in the blanks with the different forms of verb.
I ______a little English before I moved to the U.S. (Study, Past perfect)
Type: Very_short Difficulty: Easy
Q9:
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If he helps me, I ______. (Study, Simple future)
Type: Very_short Difficulty: Easy
Q10:
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I ______ English when you arrive tonight. (Study, Future continuous)
Type: Very_short Difficulty: Easy
Q11:
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I ______ every tense by the time I finish this course. (Future perfect)
Type: Very_short Difficulty: Easy
Q12:
Fill in the blanks with the different forms of verb.
I______ English for 2 hours by the time you arrive. (Study, Future perfect continuous)
Type: Very_short Difficulty: Easy
Q13:
Correct the following sentences on the basis of tense structures.
She make her own clothes.
Type: Very_short Difficulty: Easy
Q14:
Correct the following sentences on the basis of tense structures.
She is make her own clothes.
Type: Very_short Difficulty: Easy
Q15:
Correct the following sentences on the basis of tense structures.
She have made her own clothes.
Type: Very_short Difficulty: Easy
Q16:
Correct the following sentences on the basis of tense structures.
She has been made her own clothes.
Type: Very_short Difficulty: Easy
Q17:
Correct the following sentences on the basis of tense structures.
She didn’t made her own clothes.
Type: Very_short Difficulty: Easy
Q18:
Correct the following sentences on the basis of tense structures.
She was makes her own clothes.
Type: Very_short Difficulty: Easy
Q19:
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They has made their own clothes.
Type: Very_short Difficulty: Easy
Q20:
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She had maken her own clothes.
Type: Very_short Difficulty: Easy
Q21:
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She had been make her own clothes.
Type: Very_short Difficulty: Easy
Q22:
Correct the following sentences on the basis of tense structures.
She will made her own clothes.
Type: Very_short Difficulty: Easy
Q23:
Correct the following sentences on the basis of tense structures.
She will making her own clothes.
Type: Very_short Difficulty: Easy
Q24:
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They was making there own clothes.
Type: Very_short Difficulty: Easy
Q25:
Correct the following sentences on the basis of tense structures.
She will have making her own clothes.
Type: Very_short Difficulty: Easy
Q26:
Correct the following sentences on the basis of tense structures.
She will have making her own clothes.
Type: Very_short Difficulty: Easy
Q27:
Correct the following sentences on the basis of tense structures.
She will makes her own clothes.
Type: Very_short Difficulty: Easy
Q28:
Correct the following sentences on the basis of tense structures.
Do she make her own clothes?
Type: Very_short Difficulty: Easy
Q29:
Correct the following sentences on the basis of tense structures.
She are making her own clothes.
Type: Very_short Difficulty: Easy
Q30:
Correct the following sentences on the basis of tense structures.
She have make her own clothes.
Type: Very_short Difficulty: Easy
Q31:
Correct the following sentences on the basis of tense structures.
They is making their own clothes.
Type: Very_short Difficulty: Easy
Q32:
Correct the following sentences on the basis of tense structures.
She have been making her own clothes.
Type: Very_short Difficulty: Easy
Q33:
Correct the following sentences on the basis of tense structures.
She was made her own clothes.
Type: Very_short Difficulty: Easy
Q34:
Correct the following sentences on the basis of tense structures.
She were making her own clothes.
Type: Very_short Difficulty: Easy
Q35:
Correct the following sentences on the basis of tense structures.
They doesn’t make their own clothes.
Type: Very_short Difficulty: Easy
Q36:
Correct the following sentences on the basis of tense structures.
She have made her own clothes.
Type: Very_short Difficulty: Easy
Q37:
Correct the following sentences on the basis of tense structures.
She don’t make her own clothes.
Type: Very_short Difficulty: Easy
Q38:
Correct the following sentences on the basis of tense structures.
She had been make her own clothes.
Type: Very_short Difficulty: Easy
Q39:
Fill verbs in brackets.
We ______ (do) )a lot of fishing yesterday.
Type: Very_short Difficulty: Easy
Q40:
Fill verbs in brackets.
We sometimes ______(go) to the cinema.
Type: Very_short Difficulty: Easy
Q41:
Fill verbs in brackets.
They ______ (work) hard yesterday.
Type: Very_short Difficulty: Easy
Q42:
Fill verbs in brackets.
They ______ (build)this temple in 2001.
Type: Very_short Difficulty: Easy
Q43:
Fill verbs in brackets.
My parents always ______(visit)to Jumla in June.
Type: Very_short Difficulty: Easy
Q44:
Fill verbs in brackets.
I ______ (live) in this town three years ago.
Type: Very_short Difficulty: Easy
Q45:
Fill verbs in brackets.
Cats ______(like) both milk and mice.
Type: Very_short Difficulty: Easy
Q46:
Fill verbs in brackets.
I haven’t ______ (see) him for two days.
Type: Very_short Difficulty: Easy
Q47:
Fill verbs in brackets.
She has already ______ (do) the washing up.
Type: Very_short Difficulty: Easy
Q48:
Fill verbs in brackets.
Look! It ______ (is) raining now.
Type: Very_short Difficulty: Easy
Q49:
Put the correct verb.
Would you like to have something to eat? No, then when thank you I ______ dinner.
Type: Very_short Difficulty: Easy
Q50:
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While we ______ (play)chess, Anu took a shower.
Type: Very_short Difficulty: Easy
Q51:
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They ______ in the garden when the phone rang.(work)
Type: Very_short Difficulty: Easy
Q52:
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When he arrived, we______ dinner.(have)
Type: Very_short Difficulty: Easy
Q53:
Put the correct verb.
I ______ asleep yesterday when I was watching TV.(fall)
Type: Very_short Difficulty: Easy
Q54:
Put the correct verb.
We ______ some animals on the wall last week.(paint)
Type: Very_short Difficulty: Easy
Q55:
Put the correct verb.
I ______ you back the money tomorrow.(give)
Type: Very_short Difficulty: Easy
Q56:
Put the correct verb.
Up until now, I haven’t ______ any emails from him.(get)
Type: Very_short Difficulty: Easy
Q57:
Put the correct verb.
What good books ______ you ______ recently.(has, read)
Type: Very_short Difficulty: Easy
Q58:
Put the correct verb.
Students generally ______ English and drama at college.
Type: Very_short Difficulty: Easy
Q59:
Confused words
The radio signal is very ______. I can’t pick it up.(week/weak)
Type: Very_short Difficulty: Easy
Q60:
Confused words
The teacher calls the student ______every morning.(roll/role)
Type: Very_short Difficulty: Easy
Q61:
Confused words
My friend got the lead ______in the school play.(role/roll)
Type: Very_short Difficulty: Easy
Q62:
Confused words
The sun ______ over the mountains.(rows/rose)
Type: Very_short Difficulty: Easy
Q63:
Confused words
The ______ garden is beautiful this year.(rose/rows)
Type: Very_short Difficulty: Easy
Q64:
Confused words
My eldest ______ is called Rahul. (sun/son)
Type: Very_short Difficulty: Easy
Q65:
Confused words
Looking directly into the ______could hurt your eyes.(son/sun)
Type: Very_short Difficulty: Easy
Q66:
Confused words
He just sits and ______ out of the window.(stairs/stares)
Type: Very_short Difficulty: Easy
Q67:
Confused words
The toilet is at the top of the ______.(stares/stairs)
Type: Very_short Difficulty: Easy
Q68:
Confused words
What are you going to ______to the party.(wear/were)
Type: Very_short Difficulty: Easy
Q69:
Confused words
The ______ is very clean in the country. (err/ air)
Type: Very_short Difficulty: Easy
Q70:
Confused words
I ______do it if I got the chance. (would/wood)
Type: Very_short Difficulty: Easy
Q71:
Confused words
The puppy had mud all over its ______. (pause/ paws)
Type: Very_short Difficulty: Easy
Q72:
confused words
I hate watching horror films because they make me feel ______. (seek/sick)
Type: Very_short Difficulty: Easy
Q73:
Confused words
He is the ______owner of the company.(soul/sole)
Type: Very_short Difficulty: Easy
Q74:
Confused words
A rabbit looks very much like a ______.(hare/hair)
Type: Very_short Difficulty: Easy
Q75:
Confused words
Didn’t you ______me when I called you?(here/hear)
Type: Very_short Difficulty: Easy
Q76:
Confused words
She has a double role as ______ and French teacher.(principal/principle)
Type: Very_short Difficulty: Easy
Q77:
Confused words
The college ______ promised to look into the matter.(principle/ principal)
Type: Very_short Difficulty: Easy
Q78:
Confused words
She kept a ______for over twenty years.(diary/dairy)
Type: Very_short Difficulty: Easy
Q79:
Confused words
There was a bargain ______ at the department store, so I went shopping.(sail/sale)
Type: Very_short Difficulty: Easy
Q80:
Confused words
The titanic set ______ from Southampton on her maiden voyage. (sale/sail)
Type: Very_short Difficulty: Easy
Q81:
Confused words
A female sheep is called a ewe.(you/ewe)
Type: Very_short Difficulty: Easy
Q82:
Confused words
My bicycle tire has a slow ______.(lick/leak)
Type: Very_short Difficulty: Easy
Q83:
Confused words
I would ______like to go with you.(nut/not)
Type: Very_short Difficulty: Easy
Q84:
Confused words
There are seven days in one ______.(weak/week)
Type: Very_short Difficulty: Easy
Q85:
Write ‘T’ for true and ‘F’ for false.
Taniya wrote this letter to Anu.
Type: Very_short Difficulty: Easy
Q86:
Write ‘T’ for true and ‘F’ for false.
The letter was written on November 10, 2009.
Type: Very_short Difficulty: Easy
Q87:
Write ‘T’ for true and ‘F’ for false.
Anu wrote this letter when she was in Kathmandu.
Type: Very_short Difficulty: Easy
Q88:
Write ‘T’ for true and ‘F’ for false.
Anu and Taniya visited bhaktapur together.
Type: Very_short Difficulty: Easy
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Lamarck’s Theory of Evolution
Jean Baptise de Lamarck of France, Alfred Russel Wallace and Charles Darwin of England and Hugo De Vries of Holland are the main contributors to the theory of evolution.
The major theories of evolution are:
- Lamarck’s theory or Lamarckism
- Darwin’s theory or Darwinism
Lamarck’s theory or Lamarckism
Jean Baptise de Lamarck of France is biologist and philosopher. He proposed Lamarckism in his book philosophic zoologique in 1809 AD. This theory can be explained in the following points:
- Direct environmental effect: According to Lamarck, the environment directly influences the modification of the organs in organisms. He believed that due to the changed environment, there is a new need for the organism which modifies the organs of the organism.
- Use and disuse of organs: A constant use and disuse of the organs lead to the gradual weakening of the organs. A constant use and disuse of organs lead to its modification in the form and less used structures reduced and ultimately gets lost.
- Inheritance of acquired characters: The characters obtained by an organism by an organism by direct environmental effect and use and disuse of the organs are called acquired characters. The acquired characters are inherited from one generation to another and new species are originated after a series of generations.
Criticism of Lamarckism
- Lamarck has not proved experimentally that use and disuse of organs can modify them.
- It is absolutely incorrect that new organs can be developed according to the need and wish of the organism.
- All the require characters are not inherited into the new generation.
Lesson
Evolution
Subject
Science
Grade
Grade 9
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