National Science Olympiad Forum By SOF Olympiad Trainer - Page 424

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Inesh Dheer from Bhavan Vidyalaya, Chandigarh

Subject :NSO Class : Class 8

Which of the following is incorrect about the given figures?

A Both are unicellular eukaryotic organisms.
B a is unicellular while b is multicellular organism.
C Both are capable of independent existence.
D Both (B) and (C)

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Ans 1:

Bipasana from KV IIT Kanpur, Kanpur

Class : Class 9

But b is paramecium, right? And paramecium is unicellular too!

Ans 2:

Vartika Agarwal from Phoenix world school, Pune

Class : Class 9

okay I know I put answer as option c but COME ON!! option b is completely wrong even solution is saying both are unicellular and capable of independent existence .

Ans 3:

Dhanya Krishnaji from ISG, Muscat

Class : Class 8

Yes, the correct answer is both a and c as amoeba and paramecium are unicellular.

Ans 4:

Dhanya Krishnaji from ISG, Muscat

Class : Class 8

No the answer b is correct because the question says incorrect and not correct

Ans 5:

arnav raj sharma from gulibulium school, new york

Class : Class 8

the characteristics of the R is not same in the table and the venn diagram

Ans 6:

Hamsavarshini Swaminathan from St Anns Senior Secondary School, Roorkee

Class : Class 10

True! The answer should be a and c.

Ans 7:

cherry from atomic energy central school-4, mumbai

Class : Class 9

yes...the answer should be a and c

Ans 8:

Antarik Maity from Bharatiya Vidyabhaban, Kolkata

Class : Class 8

The correct answer should be option A and not option B as Paramecium (Organism C) is also an unicellular organism along with Amoeba.

Ans 9:

Antarik Maity from Bharatiya Vidyabhaban, Kolkata

Class : Class 8

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Inesh Dheer from Bhavan Vidyalaya, Chandigarh

Subject :NSO Class : Class 8

Which of the following statements is/are correct?
(i) The nucleoplasm and the cytoplasm together make up the protoplasm.
(ii) Chloroplasts are a type of plastids, which occur in plant cells.
(iii) In many multicellular organisms, all cells have projections called cilia and flagella.
(iv) Cell destruction occurs by centrosomes.

A (i) and (ii) only
B (i), (ii) and (iii) only
C (i) only
D (iii) and (iv) only

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Satvik Mehta from St Andrews school Bowenpally, Secunderabad

Subject :NSO Class : Class 8

There is a certain relationship between figures P and Q & R and S. Identify the relationship and find the missing figure.

A
B
C
D

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Ans 1:

Kushi V from Jss Public School, bangalore

Class : Class 8

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Satvik Mehta from St Andrews school Bowenpally, Secunderabad

Subject :NSO Class : Class 8

Group the given figure into three classes using each figure only once.

A 1, 5, 6; 2, 3, 4; 7, 8, 9
B 1, 6, 8; 2, 4, 7; 3, 5, 9
C 1, 3, 4; 2, 7, 8; 6, 5, 9
D 1, 6, 8; 2, 5, 7; 3, 4, 9

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Tanisha from Ryan International School , Raipur

Subject :NSO Class : Class 6

Magnets lose their properties significantly if

A Left in the open
B Touched with iron
C Dropped from a height repeatedly
D None of these

View All Answers (15)

Ans 1:

Moushami Sha from KV VSN, Nagpur

Class : Class 6

C is the answer

Ans 2:

Mihika Raut from ST JOSEPHS SCHOOL, RIHAND NAGAR

Class : Class 8

C is the correct answer

Ans 3:

Pranit Sinha from Montfort School, Roorkee, Haridwar

Class : Class 6

If permanent magnet ans.(A), if normal ans.(B)

Ans 4:

Sruthi from Suguna International School, Coimbatore

Class : Class 6

C)Dropped from a height repeatedly

Ans 5:

Dhruv Umesh Patil from Euroschool Airoli, Navi Mumbai

Class : Class 6

Ans 6:

Apeksha Singh from Cambridge School , Noida

Class : Class 3

c is correct!!!!

Ans 7:

Devabhrith from Delhi Public School Electronic City Bangalore, Bengaluru

Class : Class 8

Ngl C is correct answer

Ans 8:

Aadhira from velammal new gen school, Medavakkam, Chennai

Class : Class 6

The correct answer is C.

Ans 9:

Tamrashi Pani from National Public School, Bangalore

Class : Class 8

It is C

Ans 10:

SOUVAGYA SAHA from De Nobili School, DHANBAD

Class : Class 10

Ans 11:

Pratheek from Null, Null

Class : Class 4

Option C

Ans 12:

Adithya Kumble from Deens Academy, Bangalore

Class : Class 7

c is correct

Ans 13:

Aadvik saini from Mvn sector 17, Faridabad

Class : Class 8

option c is correct

Ans 14:

Dheer Pandey from Sentia The Global School, Hyderabad

Class : Class 10

c is the answer

Ans 15:

Preethi from KKIS, Singapore

Class : Class 7

c Is the correct answer

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Shourya Ganesh from The Green Acres Academy, Mumbai

Subject :NSO Class : Class 5

Which of the following sets contains monocot plants only?

A Gram, pea, bean
B Maize, jowar, gram
C Rice, wheat, bean
D Wheat, rice, maize

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Ans 1:

Shourya Ganesh from The Green Acres Academy, Mumbai

Class : Class 9

Ans 2:

Nakul Syam from St Thomas Residential School, Thiruvananthapuram

Class : Class 7

Ans 3:

Aaditya Malhotra from Isaac Newton Global School, Mumbai

Class : Class 3

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S Nithyanth from Geethanjali Vidyalaya, Bangalore

Subject :NSO Class : Class 4

Which of these planets is closest in size to Earth?

(A) Mercury

(B) Jupiter

(D) Neptune

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Ans 1:

S Nithyanth from Geethanjali Vidyalaya, Bangalore

Class : Class 6

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Satvik Mehta from St Andrews school Bowenpally, Secunderabad

Subject :NSO Class : Class 8

Which of the following Venn diagrams depicts the relationship amongst “Vegetables, Onion and Fruits”?

A
B
C
D

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Ans 1:

Student from School, City

Class : Class 8

I have not seen a single *FRUIT* which is a vegetable.

Ans 2:

Kaustubh from Neerja Modi school, Jaipur

Class : Class 8

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Pratham garg from Mother teacher school, Barnala

Subject :NSO Class : Class 10

In a Drosophila, black eye colour is dominant over brown eye and allele for normal wings is dominant over allele of vestigial wing. Hybrid obtained in F₁ generation have black eye colour with normal wing. By selfing of F₁ hybrid, total 560 offspring were obtained in F₂ having four different genotypes. How many flies with black eyes and vestigial wings; and brown eyes with normal wings would be obtained? What would be their possible genotypes?

A105--- 210--- BBWw--- bbWw
B 105--- 105--- Bbww--- bbWw
C 315--- 35--- BbWw--- Bbww
D 100--- 150--- bbww--- BBww

Pls provide an explanation

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Aaditya Jain from Jaypee public school, Greater noida

Subject :NSO Class : Class 6

A few mixtures are listed in the box.
(i) Salt solution (ii) Oil and water (iii) Alcohol and water (iv) Soda water (v) Iron and sand (vi) Flour and husk (vii) Milk
Now, read the given passage and fill in the blanks by selecting an appropriate option. Mixtures (p) are homogeneous in nature while mixtures (q) are heterogeneous in nature. Mixture(s) (r) is/are separated into its/their components by centrifugation where (s) component collects towards the centre. Mixture (t) is separated into its components by distillation where the component having (u) boiling point gets collected in the receiver flask first.

	P	Q	R	S	T	U
A	i, ii, vi	iii, iv, v, vii	ii, v	Heavier	iii	Higher
B	ii, iv, vi	i, iii, v, vii	ii, iv	Lighter	vii	Lower
C	i, iii, iv	ii, v, vi, vii	vii	Lighter	iii	Lower
D	i, iii, vi	ii, iv, v, vii	iv, vii	Heavier	i	Higher

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