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Legminous plants have auxilery buds attached in their root which contain bacterias rizobium ,who helps to fix the nitrogen in them. Pleople also use to sow leguminous plants in there field to make it fertile,with the help of symbiotic nitrogen fixation. Rizobium give nitrate and nitrite to plant and plants provide them food and shelter, this process is known as symbiotic association.and it have a big role in nitrogen cycle .

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What is adhesive force??

Posted by Munna Kushwaha 6 years, 1 month ago

CBSE > Class 11 > Biology

2 answers

Munna Kushwaha 6 years, 1 month ago

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Shubham Rai 6 years, 1 month ago

The force acting between molecules of different substance

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Why do we feel the pulse on the artery in each heartbeat beat?

Posted by Mardam Yinyo 6 years, 1 month ago

CBSE > Class 11 > Biology

1 answers

Pawan Chandra 6 years, 1 month ago

Because whenever heart pumps the blood it generate a force and the pulse starts to increase its volume due to the bloods flow and the increase and decrease in volume trnds to feel the pulse.????

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Protozoa

Posted by Happy Ror 6 years, 1 month ago

CBSE > Class 11 > Biology

1 answers

Meghna Thapar 5 years, 8 months ago

Protozoa are small (but not simple) organisms. They are single-celled heterotrophic eukaryotes, which eat bacteria and other food sources. It is an old term, and the wider term protist is generally preferred today.

These are divided into four major groups.

(1) Amoeboid protozoans or sarcodines. They are unicellular, jelly-like protozoa found in fresh or sea water and in moist soil. ...

(2) Flagellated protozoans or zooflagellates. ...

(3) Ciliated protozoans or ciliates. ...

(4) Sporozoans.

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Name the largest chordates

Posted by Komal Shabi 6 years, 1 month ago

CBSE > Class 11 > Biology

4 answers

Aditya Narayan Singh 6 years, 1 month ago

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Aditya Narayan Singh 6 years, 1 month ago

Blue whale

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Om Hingmire 6 years, 1 month ago

Blue Whale

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Farhat Shaikh Shaikh 6 years, 1 month ago

Blue whale

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Patient of cardiovascular disease are usually recommended to use vegetable oils with polyunsaturated fatty acids.Give reason

Posted by Chungkit Lepcha 6 years, 1 month ago

CBSE > Class 11 > Biology

1 answers

Meghna Thapar 5 years, 8 months ago

Polyunsaturated fats can help lower your LDL (bad) cholesterol. Cholesterol is a soft, waxy substance that can cause clogged or blocked arteries (blood vessels). Having low LDL cholesterol reduces your risk for heart disease.

Polyunsaturated fats include omega-3 and omega-6 fats. These are essential fatty acids that the body needs for brain function and cell growth. Our bodies DO NOT make essential fatty acids, so you can only get them from food.

Omega-3 fatty acids are good for your heart in several ways. They help:

Reduce triglycerides, a type of fat in your blood
Reduce the risk of developing an irregulat heartbeat (arrhythmia).
Slow the buildup of plaque in your arteries
Slightly lower your blood pressure

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In case of hyperthyroidism the thyroid gland gets bulged.then what happens to thyroid gland in case of hypothyroidism?it increase or remains same?

Posted by Thamarai Krishnan 6 years, 1 month ago

CBSE > Class 11 > Biology

1 answers

Munna Kushwaha 6 years, 1 month ago

Remain the same

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Which hormone is responsible for normal sleep - wake cycle?

Posted by Anshuman Singh 6 years, 1 month ago

CBSE > Class 11 > Biology

3 answers

Aditya Narayan Singh 6 years, 1 month ago

MELATONIN

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Komal Shabi 6 years, 1 month ago

Hormone Melatonin

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Priyanshu Kumar 6 years, 1 month ago

Melatonin____secereted by peniel gland Well bro taking melatonin pills can also make you sleep more and also make you beautiful for it acts antagonastically to melanin

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In which organ Bowman's glands are present?

Posted by Anshuman Singh 6 years, 1 month ago

CBSE > Class 11 > Biology

3 answers

Aditya Narayan Singh 6 years, 1 month ago

Kidney

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Jivisha Srivastava 6 years, 1 month ago

Bowman 's capsule present as part of nephron in kidney

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Priyanshu Kumar 6 years, 1 month ago

Bhai glands ya capsule

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What is the Anatomical unit of muscle?

Posted by Anshuman Singh 6 years, 1 month ago

CBSE > Class 11 > Biology

2 answers

Aditya Narayan Singh 6 years, 1 month ago

SARCOMERE

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Priyanshu Kumar 6 years, 1 month ago

Sarcomere

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Calcium deficiency in the body occurred in the absence of which Vitamin?

Posted by Anshuman Singh 6 years, 1 month ago

CBSE > Class 11 > Biology

1 answers

Priyanshu Kumar 6 years, 1 month ago

Vitamin D the defeciency is called as rekittesiasis(may be some spelling mistake) it also is a root cause for osteomalacia as well as osteoporosis

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Which vitamin is required for maturation of erythrocytes?

Posted by Anshuman Singh 6 years, 1 month ago

CBSE > Class 11 > Biology

1 answers

Nongdren Khomba 6 years, 1 month ago

Vitamin B12

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What is the other name of heart attack

Posted by Anshuman Singh 6 years, 1 month ago

CBSE > Class 11 > Biology

2 answers

Nongdren Khomba 6 years, 1 month ago

Myocardial infarction

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Priyanshu Kumar 6 years, 1 month ago

Cardiac arrest

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Impulse of heart beat originate from?

Posted by Anshuman Singh 6 years, 1 month ago

CBSE > Class 11 > Biology

1 answers

Priyanshu Kumar 6 years, 1 month ago

Start from SA node travel to AV node then left and right bundle of his and then to purkinje fibres

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In mammals, which blood vessels would normally carry largest amount of urea?

Posted by Anshuman Singh 6 years, 1 month ago

CBSE > Class 11 > Biology

2 answers

Yogita Ingle 6 years, 1 month ago

Urea is synthesised in the liver. So, maximum amount of urea of urea is present in hepatic vein and minimum in Renal vein.

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Priyanshu Kumar 6 years, 1 month ago

Afferent arteriole of kideny

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In which organ Erythropoiesis take place?

Posted by Anshuman Singh 6 years, 1 month ago

CBSE > Class 11 > Biology

3 answers

Aditya Narayan Singh 6 years, 1 month ago

Bone marrow

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Yogita Ingle 6 years, 1 month ago

Formation of RBCs is called erythropoiesis. It occurs in the liver and spleen in the foetus and in the red bone marrow after birth.

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Priyanshu Kumar 6 years, 1 month ago

Child====liver,bone marrow,spleen Adult====bone marrow

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In which part of the body lymph capillaries are not found?

Posted by Anshuman Singh 6 years, 1 month ago

CBSE > Class 11 > Biology

1 answers

Priyanshu Kumar 6 years, 1 month ago

Lymph originate from intestinal part and reaches till left thoracic dict

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Expalin in brief type of cartilage

Posted by Pawan Surwase 6 years, 1 month ago

CBSE > Class 11 > Biology

1 answers

Yogita Ingle 6 years, 1 month ago

It is thin, fibrous, flexible connective tissue, which is mainly found in the external ear, larynx, respiratory tract, and the articulating surface of the joints. These cartilages lack blood vessels, therefore the growth and development of these tissues are slower compared to the other tissues. Altogether there are three different types of cartilages and it includes:

Hyaline cartilage: It serves as a shock absorber and allows the smooth movement of the bones at joints. They are mainly found in the nose, respiratory tract, and joints
Fibrocartilage is found in the knee, and it is tough and inflexible.
Elastic cartilage is found in-ear, epiglottis, and larynx. It is the most flexible cartilage.

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Name the respiratory organ in cockroach and kingcrab

Posted by Randhir Singh 6 years, 1 month ago

CBSE > Class 11 > Biology

1 answers

Farhat Shaikh Shaikh 6 years, 1 month ago

Cockroach : trachea Kingcrab : gills

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What is the reason behind burping?

Posted by Jivisha Srivastava 6 years, 1 month ago

CBSE > Class 11 > Biology

1 answers

Farhat Shaikh Shaikh 6 years, 1 month ago

There are many reasons for example stomach ulcer, irretible bowel syndrome( IBS) acid reflux ,gastro intestinal disease , gastritis.

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What chemical present in the onions causes tears in eyes?

Posted by Jivisha Srivastava 6 years, 1 month ago

CBSE > Class 11 > Biology

3 answers

Yogita Ingle 6 years, 1 month ago

Onions produce the chemical irritant known as syn-propanethial-S-oxide. It stimulates the eyes’ lachrymal glands so they release tears.

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Anshuman Singh 6 years, 1 month ago

(Syn propanethial S oxide) , it stimulates lachrymal gland to release tear

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Navdeep Thind 6 years, 1 month ago

Give me answers please

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Smallest mammal?

Posted by Jivisha Srivastava 6 years, 1 month ago

CBSE > Class 11 > Biology

1 answers

Farhat Shaikh Shaikh 6 years, 1 month ago

Etruscan shrew is the smallest mammal.

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Where is vitamin K synthesized in our body?

Posted by Jivisha Srivastava 6 years, 1 month ago

CBSE > Class 11 > Biology

4 answers

Anshuman Singh 6 years, 1 month ago

In small intestine

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Farhat Shaikh Shaikh 6 years, 1 month ago

Opps sry ... Its large intestine ...

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Jivisha Srivastava 6 years, 1 month ago

In colon?

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Farhat Shaikh Shaikh 6 years, 1 month ago

In human beings it synthesized in small intestine by bacteria .

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Where is vitamin K stored in our body?

Posted by Jivisha Srivastava 6 years, 1 month ago

CBSE > Class 11 > Biology

1 answers

Farhat Shaikh Shaikh 6 years, 1 month ago

In liver and fatty tissues.

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Strongest part of human body

Posted by Jivisha Srivastava 6 years, 1 month ago

CBSE > Class 11 > Biology

1 answers

Farhat Shaikh Shaikh 6 years, 1 month ago

Enamel is the strongest part of our body . This is present in theeth

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What are oligosaccharides?

Posted by Jivisha Srivastava 6 years, 1 month ago

CBSE > Class 11 > Biology

2 answers

Yogita Ingle 6 years, 1 month ago

Oligosachharides contain 2 to 9 monosaccharides.
Oligosaccharides are basically classsified as disaccharides, trisaccharides, tetrasaccharides, pentasachharides and so on depending upon the number of monosaccharides present in the sugar.
Fructo-oligosaccharides and inulin oligosaccharides consist of short chains of fructose molecules, while galacto-oligosaccharides consist of short chains of galactose molecules. All three types of oligosaccharides occur naturally.

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Farhat Shaikh Shaikh 6 years, 1 month ago

An oligosaccharides is a saccharide polymer containing small number of monosaccharides.

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What are tissue

Posted by Rakshit Yadav 6 years, 1 month ago

CBSE > Class 11 > Biology