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what is warm blooded and cold blooded animal

Posted by Sarthak Gote 5 years, 11 months ago

3 answers

Kishan Tiwari 5 years, 11 months ago

Those animals who does not change their body temperature through envionment they are warm blooded like humans and who change temperature through envionment are cold blooded animals like fish

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Shalini Kumari 5 years, 11 months ago

Animals having changing body temp.are called cold blooded amimals. And animals those body temp. dont change are warm blooded animals.

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Sumit Singh 5 years, 11 months ago

The warm blooded are mammal and cold blooded like reptilia

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ANSWER

About infection disease

Posted by Nemnei Kim 5 years, 11 months ago

CBSE > Class 09 > Science

1 answers

Meghna Thapar 5 years, 7 months ago

Diseases where microbes are the immediate causes are called infectious diseases. Organisms that can cause disease are found in a wide range of such categories. Some of them are viruses, bacteria, fungi, protozoans or multicellular organisms, such as worms.

The type of treatment of a disease depends on the category of the infectious agent.

Members of each one of these groups have many common biological characteristics. For example - all viruses live inside host cells, whereas bacteria very rarely do. Viruses, bacteria and fungi multiply very quickly, while worms multiply very slowly in comparison. Taxonomically, all bacteria are closely related to each other than to viruses and vice versa.

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What is homogeneous mixture? Give example

Posted by M Kavi Varshini 5 years, 11 months ago

CBSE > Class 09 > Science

2 answers

Ujjawal Verma 5 years, 11 months ago

The mixture which has uniform composition throughout it is known as homogeneous mixtures. For example: mixture of salt and water

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Sumit Singh 5 years, 11 months ago

It has no visible boundaries of seperation between various constituents so they called homogenous mixture ex- mixture of chalk powder and water

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ANSWER

What happen when salt is added to water

Posted by Shubham Kulkarni 5 years, 11 months ago

CBSE > Class 09 > Science

4 answers

Sumit Singh 5 years, 11 months ago

When salt is added in water the salt particles get into the between of molecules of water

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Rudra Abhishek Badatia 5 years, 11 months ago

Right

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Rishi Dutt 5 years, 11 months ago

When we add salt in water it will dissolve in it

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M Kavi Varshini 5 years, 11 months ago

When salt is added to water salt will be dissolved in water

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ANSWER

Relation between pressure thrust and area

Posted by Divick Pandey 5 years, 11 months ago

CBSE > Class 09 > Science

1 answers

Meghna Thapar 5 years, 7 months ago

The thrust on unit area is called pressure.

Pressure is the force acting on a unit area of the object. Thus,

Pressure= thrust/area

Substituting the SI unit of thrust and area we get the SI unit of pressure as N/m² or N m^–2. It is also called as Pascal.

The same force acting on a smaller area exerts a larger pressure, and a smaller pressure on a larger area.

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Is there any science app in which all scientific questions included?

Posted by Shaili Shree 5 years, 11 months ago

CBSE > Class 09 > Science

1 answers

Mahesh Gamit 5 years, 11 months ago

extramarks is the app in which more than 100 questions related to science are available.

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ANSWER

Calorific value of carbohydrates is about 4.8j/gm running of 1m by you 50kg required 600j of energy.how many kg of potato required by you to complest the energy for running by you 500m.if the amount of energy released by potatoes is about 20%

Posted by Ajay Kumar 5 years, 11 months ago

CBSE > Class 09 > Science

1 answers

Ajay Kumar 5 years, 11 months ago

58 j

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Define soil pollution

Posted by Ganesh Tiwari 5 years, 11 months ago

CBSE > Class 09 > Science

1 answers

Rashi Jha 5 years, 11 months ago

Soil pollution is defined as the presence of toxic chemicals (pollutants or contaminants) in soil, in high enough concentrations to pose a risk to human health and/or the ecosystem.

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How does the formation of proton explained by the e goldstein

Posted by Rushtam Singh 5 years, 11 months ago

CBSE > Class 09 > Science

1 answers

Meghna Thapar 5 years, 7 months ago

A German scientist, E. Goldstein in 1886, modified the discharge tube and passed electric current through it. He found that the positively charged rays were emitted from the anode in the discharge tube. These rays were called canal rays.

When an electric field was applied, these rays deflected towards the negatively charged plate. Thus, Goldstein concluded that an atom contains positively charged particles along with electrons. These positively charged particles were named as protons by a British scientist, Ernest Rutherford. Canal rays were also called anode rays since they were emitted from the anode (electrode connected to the positive terminal of high voltage source) in the gas discharge experiments using a perforated cathode.

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What are phytohormones ?state types of hormones and its function . Answer the question for 3 marks

Posted by Mantasha Kousar 5 years, 11 months ago

CBSE > Class 09 > Science

1 answers

Meghna Thapar 5 years, 7 months ago

The hormones that control and coordinate the activities in plants are called plant hormones or phytohormones.

The four types of plant hormones are:

(i) Auxins - It promotes cell enlargement and cell differentiation in plants.

(ii) Gibberellines - It helps in breaking the dormancy in seeds and buds.

(iii) Cytokinins - It promotes cell division in plants.

(iv) Abscisic acid - It promotes the dormancy in seeds and buds.

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ANSWER

What are phytohormones?state the types of hormones and its functions.answer the question in 2marks

Posted by Mantasha Kousar 5 years, 11 months ago

CBSE > Class 09 > Science

1 answers

Meghna Thapar 5 years, 7 months ago

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ANSWER

Bacteria digram

Posted by Md Shoyab Khan 5 years, 11 months ago

CBSE > Class 09 > Science

1 answers

Meghna Thapar 5 years, 7 months ago

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ANSWER

if we melt ice with heat why temperature remain constant on thermometer.

Posted by Sumit Singh 5 years, 11 months ago

CBSE > Class 09 > Science

5 answers

Tanisha Chhikara 5 years, 11 months ago

The heat energy used to change the form this heat energy is hidden so this heat is known as latent heat and because this is a hidden heat so yher is no change can be seen in temperature on thermometer

1Thank You

Arkan Khan 5 years, 11 months ago

Because the heat energy will starts to broke the solid particles to convert them so temperture remains constant on thermometer

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Arkan Khan 5 years, 11 months ago

Because the heat particles broke

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Tulja Rathore 5 years, 11 months ago

The heat os utilised in changing state of matter thus no change in temp.

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Nishant Maurya 5 years, 11 months ago

Due to latent heat

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ANSWER

A body moving with the straight line but the angle between direction and distance of force is 45° force applied by the body 5N and work done by body 5√2J.calculate the direction

Posted by Aman Verma 5 years, 11 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

Can human being leave without a brain if yes why and if no why?

Posted by Harshit Gourlariya 5 years, 11 months ago

CBSE > Class 09 > Science

4 answers

Harshit Gourlariya 5 years, 10 months ago

Rakshit answer is correct

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Rakshit Goel 5 years, 11 months ago

Yes a human body can live but not function properly witout a brain but we needs an organ called brain stem to live There are many cases when people are born without brain but lived

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Sagar Maurya 5 years, 11 months ago

No. Because brain works as operating system of our body . It tells our body parts what to do , when to do ,how to do . It links our body parts together to let the work be done . It sends the signals to and receives signals from our body parts. It has control on all of our body parts.

1Thank You

Abhay Kumar 5 years, 11 months ago

No. Because brain worked very hard and it is transparent massege in our hole body

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ANSWER

Why the metals are different in color

Posted by Renubala Mahanta 5 years, 11 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

Arthopods

Posted by Ajay Reddy Yeddula 5 years, 11 months ago

CBSE > Class 09 > Science

1 answers

Sk Mohammed Faheem 5 years, 11 months ago

Any of the phylum of animals that have a hard body without a backbone in it they can bend their legs

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ANSWER

Ice melt ing point

Posted by Vishal Singh 5 years, 11 months ago

CBSE > Class 09 > Science

9 answers

Anish Kushwaha 5 years, 11 months ago

Brother it is 0

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M Kavi Varshini 5 years, 11 months ago

Zero degree Celsius

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Tanisha Chhikara 5 years, 11 months ago

Zero or 273k

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Arkan Khan 5 years, 11 months ago

0° celcius or 273 kelvin

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Arkan Khan 5 years, 11 months ago

0°

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Tamoghna Ghosh 5 years, 11 months ago

1Thank You

Abhinav Basnotra 5 years, 11 months ago

Brother it is 0 degree Celsius

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Sk Mohammed Faheem 5 years, 11 months ago

0 or 273k

1Thank You

Kush Agrawal 5 years, 11 months ago

Bro, its 0 degree Celsius

1Thank You

ANSWER

what is mean by magenatitude

Posted by Raj Shimpi 5 years, 11 months ago

CBSE > Class 09 > Science

1 answers

Anmol Bhalla 5 years, 11 months ago

Tatti

1Thank You

ANSWER

How many moles are there in 10 g of calcium

Posted by Yo Yo Ud Chaudhary 5 years, 11 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

A truck start from rest and rolls down hill with constant acceleration.it travel s a distance of400m in 20second.find the acceleration.find the force acting on its mass is 6000kg

Posted by Karan Singh 5 years, 11 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

Derivation of three cynamatical equation

Posted by Lucky Pawar 5 years, 11 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

How to take out valency of elements

Posted by Prerita Agrawal 5 years, 11 months ago

CBSE > Class 09 > Science

2 answers

Kush Agrawal 5 years, 11 months ago

Sorry man i also tried but no way ?? u will have to learn those freaking numbers

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Anushka Choudhary 5 years, 11 months ago

Well you have to learn those

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ANSWER

Differentiate between mass and weight.

Posted by Mannat Batra 5 years, 11 months ago

CBSE > Class 09 > Science

2 answers

M Kavi Varshini 5 years, 11 months ago

Mass is always constant but weight changes from place to place. Mass is scalar quantity whereas weight is vector quantity. SI unit of mass is Kg while SI unit of weight is N. Mass cannot be zero, weight can be zero. Mass is the quantity of matter contained in an object whereas weight is the force with which an object is attracted towards centre of the earth due to gravity.

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Tiya Mavi 5 years, 11 months ago

MASS. 1) Mass can never be zero. 2) Mass does not change according to location. 3) Mass is a scaler quantity. 4) Mass usually measured in grams and kilograms. WEIGHT. 1) Weight can be zero. 2) Weight increases or decreases with higher or lower levels. 3) Weight is a vector quantity. 4) Weight usually measured in Newton, a unit force.

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ANSWER

Ek Aise Bal ka naam Likhe Jo sadaiv Vastu ki gati ka pratirodh karta hai

Posted by Kunal Jaiswal 5 years, 11 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

Describe the method of preparatiin of compost or manure

Posted by Ritlal Saw 5 years, 11 months ago

CBSE > Class 09 > Science

1 answers

Ritlal Saw 5 years, 11 months ago

Describe the method of preparation of compost or manure

3Thank You

ANSWER

Ek Aise fal ka naam Likhe Jo sadaiv Vastu ki gati ka pratirodh karta hai

Posted by Kunal Jaiswal 5 years, 11 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

What is the function of enzymes and hormones

Posted by Divyansh Choudhary 5 years, 11 months ago

CBSE > Class 09 > Science

3 answers

Kush Agrawal 5 years, 11 months ago

They actually helps like chemical messengers in our body

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Yogita Ingle 5 years, 11 months ago

Hormones are substances that act as messenger of information that regulate the timing and speed of the processes that take place in the body. But hormones do not take part in the chemical processes responsible for such functioning.

Enzymes act like catalyst that take part in the chemical processes. Without them the chemical processes will not take place at all or will be too slow.

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Yogita Ingle 5 years, 11 months ago

Enzymes	Hormones
Catalyst: Accelerates the rate of a reaction	Messenger: Triggers functions in the body
Predominantly composed of proteins	Composed of proteins, amino acids, steroids etc
Retains chemical make-up after use, hence can be reused	Chemical composition changes after use, hence cannot be reused
External factors acutely affect regulation of enzymes such as temperature, pH levels etc	External factors do not affect hormones as acutely as enzymes.
Enzymes cannot diffuse through a cell membrane	Hormones can diffuse through a cell membrane
Exocrine glands produce Enzymes (salivary glands, sweat glands)	Endocrine glands produce Hormones (thyroid and pituitary glands)