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2251.

What is a freezing point of fahrenheit

Answer» 32 degree Fahrenheit
32\'C
2252.

Diffrence between osmosis and diffusion

Answer» The water moves from high concentration towards the lower concentration is known as osmosis Oxygen and carbon dioxide across the plasma membrane by the process of diffusion
2253.

What is the utility of tissues in multi cellular organisms?

Answer»
2254.

What is vector quentity

Answer» The quantity which describe both magnitude and direction is called vector quantity.
2255.

Why is boiling called bulk phenomenon

Answer»
2256.

Give reson . sound is solid

Answer» For your confirmation the solid is not a liquid or a solid it is in the form of gas
Sound is not solid
2257.

Describe the structure of nucleus.

Answer» Nucleus it is a main point of an a cell in which the function of the cell wall be controlled by it
2258.

Write a short note on ribosoms

Answer» Ribosome is the most important cell organells. it stick to the endoplasmic reteculum which is called rough endoplasmic reticulum. It converts the RNA into protein which is a important substance for the healthy functioning of our body
2259.

How will becterial cell under hypotonic solution

Answer» Osmotic lysis would be expected to occur when bacterial cells are treated with a hypotonic solution with added lysozyme, which destroys the bacteria\'s cell walls.
2260.

Why does an aqueous solution of an acid conduct electricity

Answer» Because it has Salt in it
2261.

Name the sustrace that we burn tan we provide oxyger

Answer»
2262.

What are the inter molecules space

Answer» They are the spaces between atoms of a substance
Sorry
2263.

Compare rate of diffusion of liquids and solids give reason

Answer»
2264.

How does transport of materials take place in plasma membrane?

Answer» Through the process of osmosis and diffusion
2265.

What are hydrila plant

Answer» Hydra is organism use regenerating cells. First a small outgrowth called bud is formed on the side of its body by division of its cells. This bud then grows gradually to form a small hydra. Finally the tiny new hydra detaches itself from the body of parent hydra and lives as a separate organism.
2266.

What is the hardest substance in our body

Answer» Enemal
Femur
Teeth
2267.

What is the difference in uniform and non uniform

Answer» Uniform motion - If an object covers equal distance in equal intervals of time. Non -uniform motion -If an object travels unequal distance in equal intervals of time.
2268.

What is the function of Golgi apparatus?

Answer» Thanks Iha
Secretion
2269.

What is separation? Discuss any 5 types of separation with example.

Answer»
2270.

Why is the plasma membrane called the selectively permeable membrane

Answer» Plasma membrane is also called as selectively permiable membrane because it permits some substances to enter or exit from the cell
Because it is a membrane which permits the enter of any material in cell
2271.

The applied force on a body is 250N and the accileration is 2.5Km/s2 find it mass

Answer» 10Kg
2272.

Put dried raisins in plain water concentrated solutions of sugar

Answer»
2273.

Activity 5.6 of class 9

Answer» mujhe
write an activity to show how plasmolysis occur
2274.

How do substances like co2 and water move in and out of the cell

Answer» Diffusion
Because of diffusion
2275.

How does respiration takes place in cactos

Answer»
2276.

How to solve cross multipication method

Answer»
2277.

What is rutherford

Answer» He was a scientist who gave the atomic models.
2278.

What are the functions of lysosomes?

Answer» Lysosomes contain digestive enzymes which burst and release enzymes which consumes its own cell parts when cell is in danger.
2279.

Although sieve tube elements do not have nuclei, but still remain living. Why?

Answer»
2280.

On the basis of presence and absence of Kollam how animals classified discuss

Answer»
2281.

Is atom is living or non living

Answer» Yes because atoms have nucleus which you will read in 4 chapter as well as in higher classes.
2282.

What will happen if the epithilium lining of the blood vessel is multilayered

Answer»
2283.

What are the functions of peroxisome

Answer»
2284.

What is vascula system

Answer» The vascular system also called the circulatory system is made up of the vessels that carry blood and lymph through the body.
Vascular system
2285.

An iron Almira is a solid at a room temperature

Answer» Becuase it is rigid. It ocuupies a specific shape and size. Their density is high also.
Yes
2286.

What is the difference between odometer and speedometer

Answer» Odometer is used to measure distance travelled by a body whereas speedometer is used to measure the speed in which a body is travelling
Odometer is used to see how much distance is travelled and speedometer is used to see the speed of am automobile.
2287.

what is difference between prokaryotes and eukaryotes

Answer» Primitive nucleus is present in prokaryotic
2288.

Distinguish between osmosis and diffusion

Answer» Diffusion is a substsnce moves from high concentration to lower concentration whereas Osmosis is a special kind of diffusion of water which moves from higher concentration to lower concentration of water
The process by oxygen carbin dio dioxide moves in and out is diffusion. The movement of water molecules through a selectively preamble is osmosis
2289.

What could be the reason behind the stream of water remaining together

Answer» Force of attraction
2290.

Difference between acceleration and velocity

Answer» Velocity is also speed with directions
Velocity is vector quantity used when to tell displacement and rate of change of velocity is acceleration
Velocity is always positive and negative
Acceleration - rate of change in velocityVelocity - velocity of body is travelled didplacement per unit time
2291.

Why sound wave is called a longitudinal wave

Answer» I dont know
2292.

what is plasma in detail

Answer»
2293.

Define function of mitochondria

Answer» Mitochondria provides energy to the cell for all the metabolic activities in the form of ATP ( Adenosine Tri Phosphate ) .
Mitochondria give energy to the cell .
2294.

What is diffusion..

Answer» Diffusion is a substance which moves from higher concentration to lower concentration
The intermixing of particles of 2 different types of matter
The mixing of gases into air
2295.

Dif i ne disp define displacement

Answer» The shortest distance measured from the initial point
2296.

Difference between golgi and apparatus

Answer» Yes
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Golgi are the export hose of cell apparatus formation of lysosomes
2297.

What would happen if there is no golgi

Answer» If there will be no Golgi lysosomes will not be formed and modification of enzymes wouldn\'t be done
2298.

Which is best reference book for class 9ScienceMaths Sst

Answer» All in one
For science u must take the reference written by lakhmir singh and manjit kaur and for maths r.s. agarwal is the perfect book can be used as reference and all in one is best for sst as the summury is given there that may help u
All in one
2299.

Explain velocity . With example.

Answer» The distance travelled by a moving object or body in associate direction is called velocity.It is a vector quantity as the direction is defined in this. We can take the example of a moving car that travels a distance of 4 km in 10 min towards north and then turn to its right and covers a distance of 4 km in same time as given 10 min .then first we need to find displacement to find its velocity.So,disppacement will be 4√2.and as we know that velocity = dsplacement/total time taken.Hence,velocity will be (4√2/10)m/min towards south to east.
Velocity is defined as the speed of an object moving in definite direction.
Velocity means the speed of an object in a particular direction. For example: a car is moving with speed 20km/hr but the velocity is 20km/hr North
Velocity is displacement upon time and is a vector quantity
2300.

What is the difference between browser and search engine

Answer» ???