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What do you mean by tissue ?

Posted by Neerav Roy 5 years, 3 months ago

CBSE > Class 09 > Science

4 answers

Shweta Singh 5 years, 3 months ago

Tissue is a group of cells coordinating to perform a specific function.

1Thank You

Kajal Sharma 5 years, 3 months ago

the mass of cells that form the bodies of humans, animals and plants

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Yogita Ingle 5 years, 3 months ago

A group of cells similar in structure that work together to perform a particular function forms a tissue.
All types of tissues have two basic components:

Cells: having common origin and function.
Inter-cellular substances: Are nonliving, fibrous, jelly-like substances.

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V Das Das 5 years, 3 months ago

a group of cell is atissue

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ANSWER

Can anyone explain uniform circular motion

Posted by Tanishka Joshi 5 years, 3 months ago

CBSE > Class 09 > Science

2 answers

Meet.B. Dattani 5 years, 3 months ago

If an object moves in a circular path with uniform speed, its motion is called uniform circular motion.

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Srushti Khadtare Khadtare 5 years, 3 months ago

Of course, yeah

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Question 1 -- What is cell? Answer-- Cell is the basic structural and functional unit of life. Question 2-- Who discovered the cell and how? Answer-- Cell were discovered by Robert Hook in 1665 when he observed thin sections of bark of a tree under a self-designed compartments and them as cells.

Posted by Shweta Singh 5 years, 3 months ago

CBSE > Class 09 > Science

3 answers

Kajal Sharma 5 years, 3 months ago

This question is the basic question of biology Chaptrr cells

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V Das Das 5 years, 3 months ago

i known

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Shweta Singh 5 years, 3 months ago

This is very important questions

2Thank You

ANSWER

Define acceleration with example

Posted by Samiya Parveen 5 years, 3 months ago

CBSE > Class 09 > Science

3 answers

Rashi ?? 5 years, 3 months ago

The rate of change of velocity is called acceleration. Example -when a ball is thrown it changes its velocity by 9.8 Metre per second.

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Mansi Sharma 5 years, 3 months ago

It is change in velocity of an object in unit time

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Deepanshu Kumar 5 years, 3 months ago

The rate of change of velocity in per unit time .

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ANSWER

,who comes first egg or hen

Posted by Ghanima Kanathia 5 years, 3 months ago

CBSE > Class 09 > Science

3 answers

Chowdhury Farath 5 years, 3 months ago

Whose order given first that comes the first

1Thank You

Aditya Raj 5 years, 3 months ago

Egg

1Thank You

Ghanima Kanathia 5 years, 3 months ago

Just kidding

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ANSWER

Inertia and newtons first law difference

Posted by Deepanshu Kumar 5 years, 3 months ago

CBSE > Class 09 > Science

1 answers

Rajan Kumar Pasi 5 years, 3 months ago

Inertia is a property.
Newton's first law describes how everything uses the property of inertia.

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What are the characteristics of the particles of matter?

Posted by Rajat Rupesh 5 years, 3 months ago

CBSE > Class 09 > Science

3 answers

Payal Nandini 5 years, 3 months ago

Particles of matter have vaccant space between them Particles of matter attract each other Particles of matter are in continuous motion

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Deepanshu Kumar 5 years, 3 months ago

Matter can be defined as which occupy space has mass and felt by our sense organs

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Suraj Singh 5 years, 3 months ago

They are always moving ,, they are very small ,, we can not seen particles by Naked eyes

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ANSWER

What is momuten

Posted by Grishma Makal 5 years, 3 months ago

CBSE > Class 09 > Science

1 answers

Yogita Ingle 5 years, 3 months ago

Momentum is defined as the quantity of motion of the body. It is measured by mass × velocity , as momentum depends upon velocity, and it depends on the direction of the motion of the body as well. Momentum is a vector quantity since velocity is vector while mass is scalar.

Momentum = Mass × Velocity

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ANSWER

List 10 differences between the types of muscles.

Posted by Ritik Varshney 5 years, 3 months ago

CBSE > Class 09 > Science

1 answers

Ritik Varshney 5 years, 3 months ago

What do you mean by this Vishal thakur

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ANSWER

What is diffusion and osmosis?

Posted by Saanvi Gupta 5 years, 3 months ago

CBSE > Class 09 > Science

2 answers

Suraj Singh 5 years, 3 months ago

The pri of movement of water body in cell is called diffusion and osmosis

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Paridhi Mittal 5 years, 3 months ago

Diffusion is the process of movement of a substance from the region of their high consentration to the region of lower concentration. Osmosis is the passage of water from the region of high water concentration to a region of low water concentration through a selective permeable membrane.

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ANSWER

Can I ask who plays FreeFire here, if u play send your UID(user ID) or name ...if u play good i can even join u to ny guild...

Posted by Prabhat Gupta 5 years, 3 months ago

CBSE > Class 09 > Science

1 answers

Prabhat Gupta 5 years, 3 months ago

I'm at heroic...and lv-63

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ANSWER

Abdul while driving to school computes

Posted by Rahul Malwal 5 years, 3 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

What is the cell theory

Posted by Harish Jadhav 5 years, 3 months ago

CBSE > Class 09 > Science

1 answers

Prabhat Gupta 5 years, 3 months ago

In biology, cell theory is the historic scientific theory, now universally accepted, that living organisms are made up of cells, that they are the basic structural/organizational unit of all organisms, and that all cells come from pre-existing cells.

2Thank You

ANSWER

What is gas?

Posted by Bhumika Singh Raghav 5 years, 3 months ago

CBSE > Class 09 > Science

2 answers

Bhumika Singh Raghav 4 years, 8 months ago

Three fundamental state of matter.l

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Prabhat Gupta 5 years, 3 months ago

Gas is one of the four fundamental states of matter. A pure gas may be made up of individual atoms, elemental molecules made from one type of atom, or compound molecules made from a variety of atoms. A gas mixture, such as air, contains a variety of pure gases.

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ANSWER

Which of the following materials fall in the category of a pure substance? (a) ice (b) milk (c) iron (d) hydrochloric (e) calcium oxide (f) mercury (g) brick (h) wood (I) air.

Posted by Kundan Kumar 5 years, 3 months ago

CBSE > Class 09 > Science

1 answers

Prabhat Gupta 5 years, 3 months ago

Hi kundan...here's your answer: Ice, iron, calcium oxide and mercury are pure substances since they contain particles of only one kind of matter. In contrast, milk, hydrochloric acid (hydrogen chloride gas dissolved in water), brick and air cannot be called pure substances because they consists of particles of more than one kind of matter.

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ANSWER

What are slime moulds ?..

Posted by Prithviraj Talikoti 5 years, 3 months ago

CBSE > Class 09 > Science

2 answers

Rahul Kumar 5 years, 3 months ago

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Sayantani Sen 5 years, 3 months ago

Slime moulds are fungus-like protists found among eukaryotic organisms

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ANSWER

Name two essential elements plant get from air and water

Posted by Kiran Shimar 5 years, 3 months ago

CBSE > Class 09 > Science

2 answers

Suraj Singh 5 years, 3 months ago

Oxygen

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Yogita Ingle 5 years, 3 months ago

From air- oxygen and nitrogen

From water - Hydrogen and minerals...

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ANSWER

Differentiate between chemical and natural fertilizers

Posted by Yatharth Ahuja 5 years, 3 months ago

CBSE > Class 09 > Science

2 answers

Yogita Ingle 5 years, 3 months ago

Chemical fertilizer and organic fertilizer are branches of fertilizer. Their common feature is providing nutrients to plants. Therefore, both of them improve the productivity ofsoil.
Natural fertilizers such as manure, animal waste, and compost are considered as organic fertilizer. Fertilizers that synthesize are chemical fertilizers.
Natural fertilizer includes several nutrients together while chemical or artificial fertilizer incorporates only one or two nutrient.*.On the other hand, natural fertilizer is rich with micronutrients but, chemical fertilizer lacks micro-nutrients.
There are some advantages of natural or organic fertilizer. They are environmental friendly, improvethe soil texture and water holding capacity, minimize the soil erosion and have some alternative benefitssuch as enhancing microbial growth and applicable as a mulch
Chemical fertilizer releases nutrients faster. Therefore, it is suitable for fast growing crops like annual crops. It ensures the uniform application of nutrients all over the field. It can immediately recover nutrient deficiency of a plant.

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Devender Sawhney 5 years, 3 months ago

Chemical fertilizer are costly. Natural fertilizer are cheap.

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ANSWER

A baby lizard startles Steven Wade. The sweet little lizard accelerates from 2m/s to 10m/s in 4 secs. What is the lizard's avg acceleration as he runs away from Steven

Posted by Vasantha Kumaresan 5 years, 3 months ago

CBSE > Class 09 > Science

1 answers

Sia ? 4 years, 4 months ago

A baby lizard startles Steven Wade. The sweet little lizard accelerates from 2 m/s to 10 m/s in 4 seconds. The lizards average acceleration as he runs away from Steven will be:
acceleration = 2 m/s

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ANSWER

A baby lizard startles Steven Wade. The sweet little lizard accelerates from 2m/s to 10m/s in 4 secs

Posted by Vasantha Kumaresan 5 years, 3 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

Prove 3rd equation of motion

Posted by Prachi Shukla 5 years, 3 months ago

CBSE > Class 09 > Science

1 answers

Srushti Khadtare 5 years, 3 months ago

V^2=u^2+2as Sol. We know that V = u+at =>v-u=at Or t =(v-u)/a..........eq.(3) Also we know that Distance=average velocity x time Therefore,s=[(v+u)/2)] x [(v-u)/a] => s =(v^2-u^2)/2a => 2as =v^2 -u^2 Or v^2=u^2+2as

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ANSWER

Xylem and phloem are examples of______

Posted by Baldev Maan 5 years, 3 months ago

CBSE > Class 09 > Science

3 answers

Kajal Sharma 5 years, 3 months ago

Complex tissues

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Naresh Kumar 5 years, 3 months ago

complex tissue

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Baldev Maan 5 years, 3 months ago

Complex tissue

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ANSWER

Define matter. Is sunlight a matter? Justify your answer

Posted by Sabnam Ali 5 years, 3 months ago

CBSE > Class 09 > Science

2 answers

Mishty Panchal 5 years, 3 months ago

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Yogita Ingle 5 years, 3 months ago

Matter: Everything that has mass and occupies space is called mass.
Mass means weight and space means surroundings. So almost everything around us is matter. Even we are also matter because we have mass and occupy space.
No, sunlight is not a matter because it does not occupy space. Sunlight is a form of electromagnetic radiation and is made of small particles called photons. Photons do not have mass and have very high speed.

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ANSWER

how will the first equation of motion for a object moving with a uniform velocity change?

Posted by Pranav Patil 5 years, 3 months ago

CBSE > Class 09 > Science

1 answers

Yogita Ingle 5 years, 3 months ago

The equation of motion is derived based on the Newton’s laws of motion. And it changes accordingly when an object changes with uniform velocity.

Given is that object moves with uniform velocity, that is no change in velocity so there will no acceleration.

As we know $a=v-\left(\frac{u}{t}\right)$

Here, u = v (due to uniform velocity)

$\begin{aligned} a &=\frac{0}{t} \\ a &=0 \end{aligned}.$

1st equation of motion is, v = u + at

$\begin{array}{l}{v=u+0 \times t} \\ {v=u}\end{array}$

2nd equation of motion, $s=u t+\frac{1}{2} a t^{2}$

$\begin{array}{l}{s=u t+\left(\frac{1}{2} \times 0\right) \times t^{2}} \\ {s=u t}\end{array}$

3rd equation of motion, $\mathrm{v}^{2}=\mathrm{u}^{2}+2 \mathrm{a} \mathrm{s}$

$\begin{array}{l}{\mathrm{v}^{2}=\mathrm{u}^{2}+2 \times 0 \times s} \\ {v^{2}=u^{2}}\end{array}.$

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Diffrence between uniform motion and non uniform motion

Posted by Mayank Mishra 5 years, 3 months ago

CBSE > Class 09 > Science

1 answers

Yogita Ingle 5 years, 3 months ago

<th>

The motion is similar to the actual speed of the object.	The motion is different from the actual speed of the object.
It has zero acceleration.	It has non-zero acceleration.
Distance-time graph shows a straight line	Distance-time graph shows a curved line
Covers equal distances in equal time interval.	Covers unequal distances in equal time interval.

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A car is moving with velocity 18km/h accelarates with 5m/s how much distance will be moved when the car speed will be 18km/h

Posted by Manish Biswas 5 years, 3 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

Assignment on topic separation of material.

Posted by Nirbhay Singh 5 years, 3 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

Any four colloid

Posted by Divyanshu Singh 5 years, 3 months ago

CBSE > Class 09 > Science

1 answers

Ritik Varshney 5 years, 3 months ago

Four colloids are- whipped cream,milk,butter, muddy water.

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ANSWER

List two different between prokaryotic and Eukaryotic cell

Posted by Aniket Raj 5 years, 3 months ago

CBSE > Class 09 > Science

1 answers

Ritik Varshney 5 years, 3 months ago

In prokaryotic cell,nucleus is absent but in eukaryotic cell ,nucleus is present. In prokaryotic cell,only one chromosome is present but in eukaryotic cell,more than one chromosome is present.

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ANSWER

Write any four colloid

Posted by Divyanshu Singh 5 years, 3 months ago

CBSE > Class 09 > Science