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What is the component of aqueous and vitreous humour

Posted by Sakshi Kashyap 7 years, 10 months ago

CBSE > Class 11 > Biology

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Anshika Choudhary 7 years, 10 months ago

What do u want to ask?? Tell me I can't understand ur que?? Tell me then I will definetly help u

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Defin hcs

Posted by Sohil Khan 7 years, 11 months ago

CBSE > Class 11 > Biology

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define vernalization

Posted by Rohit Kumar 7 years, 11 months ago

CBSE > Class 11 > Biology

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Àñshul Shärmã 7 years, 11 months ago

Vernalization is the cooling of the seed during germination in order to accelerate flower when it is painted

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Why SA node is called pacemaker

Posted by Piyush Kumar 7 years, 11 months ago

CBSE > Class 11 > Biology

1 answers

Pratap Dash 7 years, 11 months ago

The sino-atrial (SA) node is a specialised bundle of neurons located in the upper part of the right atrium of the heart. The cardiac impulse originating from the SA node triggers a sequence of electrical events in the heart, thereby controlling the sequence of muscle contraction that pumps blood out of the heart. Since the SA node initiates and maintains the rhythmicity of the heart, it is known as the natural pacemaker of the human body. I hope u find this useful..

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What r purkinje fibres?

Posted by Mehak Zehra 7 years, 11 months ago

CBSE > Class 11 > Biology

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Piyush Kumar 7 years, 11 months ago

It is a type of actopic pacemaker which help into provide cadiac impusle in wall of heart

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What do u mean by osmoticpressure .explain

Posted by Mehak Zehra 7 years, 11 months ago

CBSE > Class 11 > Biology

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Rudrakshi Shukla 7 years, 10 months ago

Pressure of water which keeps the cell turgid

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Blood circulation human path in Hindi

Posted by Karan Kumar Sharma 7 years, 11 months ago

CBSE > Class 11 > Biology

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In which muscular tissue intercalated discs are found

Posted by Darshan Kumar 7 years, 11 months ago

CBSE > Class 11 > Biology

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Kab jana h

Posted by Mohit Fdk 7 years, 11 months ago

CBSE > Class 11 > Biology

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Which gas plants require for respiration

Posted by Manali Gour 7 years, 11 months ago

CBSE > Class 11 > Biology

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What's is collecting duct

Posted by Ashu Yadav 7 years, 11 months ago

CBSE > Class 11 > Biology

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Àñshul Shärmã 7 years, 11 months ago

Collecting duct is the last part of the long twisted tube that collects urine from nephron and moves it into the renal pelvis and ureters . It is also called collecting tubule

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What is placentation? Describe the types of placentation

Posted by Amit Kumar 7 years, 11 months ago

CBSE > Class 11 > Biology

2 answers

Àñshul Shärmã 7 years, 11 months ago

Placentation is the formation or arrangement of placenta in a woman's or females uterus. Types of placentation Marginal Parietal Axile Free central Superficial Basal

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Nishu Bishnoi 7 years, 11 months ago

It is the arrangement of ovules in ovary with placenta.

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Bring out the difference between the stele of dicot root and monocot root?

Posted by Madhumitha Ramachandran 4 years, 7 months ago

CBSE > Class 11 > Biology

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Sia ? 4 years, 7 months ago

Stele of dicot:

Dicot root
The 'xylem and phloem' are very limited or continuous in number.
The pith is not present in the 'dicot root'.
The secondary growth is present in the dicot root.
In this root the pericycle forms the 'cork cambium,lateral roots' and the 'part of the vascular cambium'.