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State difference between Eukaryotic and prokaryotic.

Posted by Kumud Si. 6 years, 3 months ago

3 answers

EUKARYOTIC - Those cell are well organised is called eukaryotic . It is also known as EUKARYOTS. PROKARYOTIC- Those cell are not well orgnised is called prokaryotic. It is also known as PROKARYOTS

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Yogita Ingle 6 years, 3 months ago

	Prokaryotes	Eukaryotes
Type of Cell	Always unicellular	Unicellular and multi-cellular
Cell size	Ranges in size from 0.2 μm – 2.0 μm in diameter	Size ranges from 10 μm – 100 μm in diameter
Cell wall	Usually present; chemically complex in nature	When present, chemically simple in nature
Nucleus	Absent	Present
Ribosomes	Present. Smaller in size and spherical in shape	Present. Comparatively larger in size and linear in shape
DNA arrangement	Circular	Linear
Mitochondria	Absent	Present
Cytoplasm	Present, but cell organelles absent	Present, cell organelles present
Endoplasmic reticulum	Absent	Present
Plasmids	Present	Very rarely found in eukaryotes

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Dishu Sharma 6 years, 3 months ago

EUKARYOTIC- The cells having well-organised nucleus with a nuclear membrane called eukaryotic cell. PROKARYOTIC- The cells having nuclear material without nuclear called prokaryotic cell

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ANSWER

Which animal can hear infra sonic sounds?

Posted by Pandit Saraswat Acharya Acharya 6 years, 3 months ago

CBSE > Class 08 > Science

6 answers

Ezra Naomi Roy 6 years, 3 months ago

Dogs, bats, elephants, rats, and fishe

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Akshit Thakur Singh 6 years, 3 months ago

Dogs and fishes

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Bhola Sankar Swain 6 years, 3 months ago

Dolphins and ? dogs

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Pandit Saraswat Acharya Acharya 6 years, 3 months ago

Dolphins,bats and dogs

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Dishu Sharma 6 years, 3 months ago

Dolphins and bats

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Yash Deep 6 years, 3 months ago

Dolphins and bats

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ANSWER

Explain migration

Posted by Rahul Raj Yadav 6 years, 3 months ago

CBSE > Class 08 > Science

4 answers

Akshit Thakur Singh 6 years, 3 months ago

A movement of people from one place to another in search of food,shelter and climatic conditions.

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Nandini Rajanal 6 years, 3 months ago

The movement of animals in large numbers from one place to another to overcome unfavourable conditions is called migration

2Thank You

Dishu Sharma 6 years, 3 months ago

The shifting of birds and fishes move from one climatic conditions to another is called migrations. Sometimes birds and fishes move to another country???

1Thank You

Aanya Sharma 6 years, 3 months ago

Moveing from one place to another is known as migration

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ANSWER

Distinguish between combustible and non combustible substance

Posted by Ujjaini Patil 6 years, 3 months ago

CBSE > Class 08 > Science

1 answers

Rahul Raj Yadav 6 years, 3 months ago

Those substance which can easily catch fire is called combustible substance and those substance cannot easily catch fire is called non combustible substance

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ANSWER

Who invented nucleus

Posted by Satvik Singh Yadav 6 years, 3 months ago

CBSE > Class 08 > Science

3 answers

Akshit Thakur Singh 6 years, 3 months ago

Robert brown in 1831

2Thank You

Kumud Si. 6 years, 3 months ago

Robert brown (1831)

2Thank You

Rahul Raj Yadav 6 years, 3 months ago

Robert brown

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ANSWER

Sample paper of 2019-20

Posted by Gulzar Alvi 6 years, 3 months ago

CBSE > Class 08 > Science

1 answers

Akshit Thakur Singh 6 years, 3 months ago

Agle saal puch na yaar

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ANSWER

Why plastics are poor conduter of heat and electricity

Posted by Dharmender Mahlawat 6 years, 3 months ago

CBSE > Class 08 > Science

5 answers

Rahul Raj Yadav 6 years, 3 months ago

Because plastics does not contain free electrons.

1Thank You

Rahul Raj Yadav 6 years, 3 months ago

Plastic is an insulator. So insulator substance have no charge. ?????????

0Thank You

Akshit Thakur Singh 6 years, 3 months ago

Because they are non ractive

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Aanya Sharma 6 years, 3 months ago

Wood is poor counducter of heat

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Tanushri Deshpande 6 years, 3 months ago

True

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ANSWER

Define the following terms 1- amoeba 2- asexual reproduction 3- *** organs

Posted by Sangeeta Kumar 6 years, 3 months ago

CBSE > Class 08 > Science

2 answers

Rahul Raj Yadav 6 years, 3 months ago

1 amoeba is a living organism . It has no perticular shape. 2 In which reproduction one parents is include is called asexual reproduction. 3 our body parts is known as organes

1Thank You

Dharmender Ahlawat 6 years, 3 months ago

Fgujop obnoxious for [email protected]

1Thank You

ANSWER

What is the difference between chromosomes and gene?

Posted by Soumyadeep Banik 6 years, 3 months ago

CBSE > Class 08 > Science

1 answers

Rahul Raj Yadav 6 years, 3 months ago

Choromosomes- choromosomes is the part of nucelus. It is thrade like structure in nucelus. Gene- gene carry the inharritance of parents to the children.

2Thank You

ANSWER

What is the full form of IUCN

Posted by Bharathi Balamurugan 6 years, 3 months ago

CBSE > Class 08 > Science

3 answers

Rahul Raj Yadav 6 years, 3 months ago

International union for conservation of natural resaurces ????

1Thank You

Nandini Rajanal 6 years, 3 months ago

International union for conservations of natural resorces

1Thank You

Dharmender Mahlawat 6 years, 3 months ago

International union for conservation of natural resources ?

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ANSWER

Name the plastic whose sheets are used for packing liquids

Posted by Ajay Gujar 6 years, 3 months ago

CBSE > Class 08 > Science

2 answers

Bhola Sankar Swain 6 years, 3 months ago

Polythene and polythene paper

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Ravi Kumar 6 years, 3 months ago

Polythene

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ANSWER

What do you understand by cultivated crops

Posted by Pardip Yadav Pardip Yadav 6 years, 3 months ago

CBSE > Class 08 > Science

1 answers

Meghna Thapar 5 years, 10 months ago

The plants of the same kind are grown and cultivated at one place on a large scale is called a crop. Example - cereals, pulses, vegetables, fruits, etc.

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ANSWER

Two type of metals which cuts knife

Posted by Manu Chourasiya 6 years, 3 months ago

CBSE > Class 08 > Science

2 answers

Ayushi Kapoor 6 years, 3 months ago

Sodium and pottasium can be cut by knife

0Thank You

Sezal Singla 6 years, 3 months ago

Sodium and poatssium

2Thank You

ANSWER

The youngest coal

Posted by Janvi Singh 6 years, 3 months ago

CBSE > Class 08 > Science

1 answers

Sezal Singla 6 years, 3 months ago

Lignite

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ANSWER

Crude oil is obtained from petroleum or petroleum is obtained from crude oil

Posted by Swati Sen 6 years, 3 months ago

CBSE > Class 08 > Science

3 answers

Akshit Thakur Singh 6 years, 3 months ago

Petroleoum is made by crude oil

1Thank You

Ravi Kumar 6 years, 3 months ago

Because they both are find together sometimes

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Sujal Sharma 6 years, 3 months ago

Salty water and saline water

2Thank You

ANSWER

If sodium and potassium is out what happens

Posted by Aryan Attri 6 years, 3 months ago

CBSE > Class 08 > Science

6 answers

Ayushi Kapoor 6 years, 3 months ago

They react with oxygen and start burning

0Thank You

Rahul Raj Yadav 6 years, 3 months ago

When sodium and potassium is out from kerosene it will be burn rapidly

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Akshit Thakur Singh 6 years, 3 months ago

Booooom

1Thank You

Khushi Sidhu 6 years, 3 months ago

When we kept them outside to kerosene than they react with oxygen and water and cause fire. These are very reactive metal

1Thank You

Swati Sen 6 years, 3 months ago

They are very high reactive metals. So if they are kep out it react with oxygen and burn vigorously in air and produce heat. This is the reasone they are kept in kerosene

1Thank You

Hemanta Kumar Tripathy 6 years, 3 months ago

They burn vigorously and a large amount of heat is produced It is a kind of exothermic reaction

1Thank You

ANSWER

What is naked eye

Posted by Nitin Brahaman 6 years, 3 months ago

CBSE > Class 08 > Science

4 answers

Rahul Raj Yadav 6 years, 3 months ago

Naked eyes means our eyes without any Instrument

1Thank You

Akshit Thakur Singh 6 years, 3 months ago

Eyes

0Thank You

Mareedu Neha 6 years, 3 months ago

Which we cannot see with our eyes. We can that by microscope

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Sriya? Ghosh 6 years, 3 months ago

Unaided eyes.To be seen without the help of any instrument say spectacles.

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ANSWER

What is hoe

Posted by Nitin Brahaman 6 years, 3 months ago

CBSE > Class 08 > Science

4 answers

Krishna Chauhan 6 years, 3 months ago

It is a type of modified plough used for tilling the soil and removing weeds from it

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Rahul Raj Yadav 6 years, 3 months ago

It is a simple device used for removing weeds

1Thank You

Akshit Thakur Singh 6 years, 3 months ago

A hoe is tool which help in ploughing .

0Thank You

Jyoti Yadav 6 years, 3 months ago

a hoe is a tool which is used to cut out weeds.

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ANSWER

Chapter is 9 reproduction of plant and animals question is different between asexual and sexual reproduction

Posted by Jeenal Suthar 6 years, 3 months ago

CBSE > Class 08 > Science

0 answers

ANSWER

What is the maximum age a human can survive ?

Posted by Sneha Pradhani 6 years, 3 months ago

CBSE > Class 08 > Science

6 answers

Rahul Raj Yadav 6 years, 3 months ago

Human can live more time but it depend on her meal and its presonal higene

1Thank You

Aradhana Pai 6 years, 3 months ago

The life span of an average human is 75-80 years.

0Thank You

Diya Joshi 6 years, 3 months ago

112 of some rishi i don't remember the name but yes the age is this only

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Swati Sen 6 years, 3 months ago

It depends how healthy the person is??????

2Thank You

Alok Singh 6 years, 3 months ago

Baghvan bhrose

2Thank You

Trolex Gaming 6 years, 3 months ago

18559999

2Thank You

ANSWER

If car stopped so the driver asked people to push car from outer part of car and car move while people push car on sitting in interior of car car doesn,t move why?

Posted by Geet Panwar 6 years, 3 months ago

CBSE > Class 08 > Science

0 answers

ANSWER

In which medium the sound travels fast

Posted by Rangita Bua 6 years, 3 months ago

CBSE > Class 08 > Science

2 answers

Aakriti Khanna 6 years, 3 months ago

in solids

0Thank You

Ayush Aggarwal 6 years, 3 months ago

In solids sound travels fastest an In air sound travels slowest

1Thank You

ANSWER

Explain PET ? State two uses of PET.

Posted by Prashant Yadav 6 years, 3 months ago

CBSE > Class 08 > Science

6 answers

Akshit Thakur Singh 6 years, 3 months ago

Pet is kind of plastic which help in making of bottels medicians bottels.

0Thank You

Swati Sen 6 years, 3 months ago

PET stands for Polytheylene terephathalate .lt is used to make plastic containers and plastis bottles

1Thank You

Anagha Avinash 6 years, 3 months ago

PET stands for polyetheylene terephthalate.It is a plastic used to make containers that resemble glass

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Aayushi Naga 6 years, 3 months ago

Pet is a type of plastic used in making utensuls bottels pans

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Ravi Kumar 6 years, 3 months ago

PET is a form of polyester . It is used for making pans ,utensils,bottles ,etc. .

1Thank You

Divyansh Sharma. 6 years, 3 months ago

Pet used bymaking bottles

1Thank You

ANSWER

Does any kind of sound can travel in space

Posted by Guru Ji 6 years, 3 months ago

CBSE > Class 08 > Science

4 answers

Sezal Singla 6 years, 3 months ago

No.because sound can not travel in vaccum or u can say that there is no medium in space and sound can travel only through medium so sound can not travel in space

1Thank You

Ayush Aggarwal 6 years, 3 months ago

No, because there is no medium for sound to travel

0Thank You

Subrahmanya Srinivasa Rao 6 years, 3 months ago

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Guru Ji 6 years, 3 months ago

No because there is no air, so sound can not travel

1Thank You

ANSWER

Why a person shoult not run when his clothes are on fire

Posted by Princess Qureshi 6 years, 3 months ago

CBSE > Class 08 > Science

2 answers

Swati Sen 6 years, 3 months ago

It is because to put on fire we need oxgen . And when a person runs more amount of O2 id colected near him or her and the fire increase.

1Thank You

Alok Singh 6 years, 3 months ago

Bcoz of oxygen It is the power of fire

1Thank You

ANSWER

What is ignition temperature

Posted by Tarun Verma 6 years, 3 months ago

CBSE > Class 08 > Science

5 answers

Ayushi Kapoor 6 years, 3 months ago

The lowest temperature at which an object starts burning is called its ignition temperature.

0Thank You

Akshit Thakur Singh 6 years, 3 months ago

The temperature in which fire starts

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Ravi Kumar 6 years, 3 months ago

The lowest temperature at which a substance start burning in the presence of a combustible substance start burning.

1Thank You

Ritika Prasad 6 years, 3 months ago

The lowest temperature at which a substance catches fire is called its ignition temperature

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Gaurav Seth 6 years, 3 months ago

It is defined as the minimum kindling temperature required for any substance to catch fire. This temperature varies from substance to substance.

Example:

A match stick can not burn on its own unless it rubbed on the hard surface.
A piece of paper can not burn on its own unless it is lighted with a match stick.
A log wood can not burn on its own unless it is lighted with kerosene oil to start the fire.
Another natural example of ignition temperature is forest fire.

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ANSWER

Why do we humans dream ?

Posted by Krish Mehta 6 years, 3 months ago

CBSE > Class 08 > Science

1 answers

Swati Sen 6 years, 3 months ago

To reach our destiny.

1Thank You

ANSWER

Why are we feel current when we touch electric wire (but the current is invisible)

Posted by Mukesh Suthar 6 years, 3 months ago

CBSE > Class 08 > Science

1 answers

Mukesh Suthar 6 years, 3 months ago

Because when we touch the electric wire there is electrones are present in it and when they strike our skin then, we feel current . Thanks .

1Thank You

ANSWER

What are rybosomes

Posted by Ankit Kumar 6 years, 3 months ago

CBSE > Class 08 > Science

1 answers

Yogita Ingle 6 years, 3 months ago

The ribosome is a complex molecular machine found inside the living cells that make proteins from amino acids together in the process called protein synthesis or translation. Protein synthesis is the major task performed by living cells.

Ribosomes are special as they are found in both prokaryotes and eukaryotes cells. Every cell needs ribosomes to manufacture proteins.

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ANSWER

Why our earth? human being s

Posted by Shriraj Kadam 6 years, 3 months ago

CBSE > Class 08 > Science