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What do you understand by lifespan?

Posted by Sonam Kumari 7 years, 6 months ago

CBSE > Class 12 > Biology

1 answers

Rahul Ray 7 years, 6 months ago

The time period of an organism from birth to death is called lifespan

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HOW DO I WRITE NOTE ON AMNIOCENTESIS I GOT IT IN HOLIDAYS HOME WORK PLZ SOMEONEHELP ME

Posted by Dikshu Hooda 7 years, 6 months ago

CBSE > Class 12 > Biology

1 answers

Tamoghna Roy 7 years, 6 months ago

U will find it in Wikipedia Here is the link ?? https://en.m.wikipedia.org/wiki/Amniocentesis

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Internal structure of maize seed?

Posted by Shi Vani 7 years, 6 months ago

CBSE > Class 12 > Biology

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Different between primates and non primates

Posted by Anjali Singh Rajput 7 years, 6 months ago

CBSE > Class 12 > Biology

1 answers

Saloni S 7 years, 6 months ago

Primates: Primates refer to an order of mammals characterized by the large brain, usage of hands, and complex behavior. Non Primates: Non-primates refer to any animal that is not a primate. Examples Primates: Humans, apes, monkeys, chimpanzees, gorilla, lemur, baboon, and orangutan are examples of primates. Non Primates: Birds, reptiles, amphibians, and some mammals are non-primates. Brain Primates: Primates possess a voluminous and complicated forebrain. Non Primates: Non primates possess a small forebrain. Intelligence Primates: Ideally, all primates are intelligent. Non Primates: Some non primates are intelligent.

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Topics of investigatory project with reports

Posted by Sachin Yadav 7 years, 6 months ago

CBSE > Class 12 > Biology

0 answers

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how does penicillium reproduce asexually

Posted by Rohit Kumar 7 years, 6 months ago

CBSE > Class 12 > Biology

1 answers

Shubham Sharma 7 years, 6 months ago

By forming conidiophores

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what schedule should be followed for taking contraceptive pills

Posted by Jirmi Tissopi 7 years, 6 months ago

CBSE > Class 12 > Biology

0 answers

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what is emasculation

Posted by Swati Mudgal 7 years, 6 months ago

CBSE > Class 12 > Biology

1 answers

Niharika Srivastav 7 years, 6 months ago

Removal of anther from on the flower bud before they dehiscence by using a pair of forceps.

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Why is the colour of colostrum is yellow?

Posted by Niharika Srivastav 7 years, 6 months ago

CBSE > Class 12 > Biology

1 answers

Shubham Sharma 7 years, 6 months ago

Due to presence of IGA and certain antibodies

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Describe the hormonal control of the reproductive system in human female

Posted by Mona Devi 7 years, 6 months ago

CBSE > Class 12 > Biology

1 answers

Nitesh Kumar 7 years, 6 months ago

HYPOTHALLAMUS ! GnRH ANTERIOR PITUATORY ! FSH/ LH ! OVARY ! PROGESTRON / ESTROGEN ! UTERUS

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What is a fate of sperms shown in diagram.

Posted by Mahima Praja Pati 7 years, 6 months ago

CBSE > Class 12 > Biology

0 answers

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What is LH surge

Posted by Vineet Kumar 7 years, 6 months ago

CBSE > Class 12 > Biology

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Find out how sexual reproduction enables these organisms (organisms that have a relatively simple organisation)to survive during unfavourable conditions?Why is sexual reproduction favoured under such conditions?

Posted by Akash Biswas 7 years, 6 months ago

CBSE > Class 12 > Biology

0 answers

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Plant having little or no secondary growth are Grasses Conifers Deciduous angiosperms Cycads

Posted by Bhavya Malhotra 7 years, 6 months ago

CBSE > Class 12 > Biology

0 answers

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Mention the natural contraceptive methods used to prevent pregnancy?

Posted by Sagar Debnath 7 years, 6 months ago

CBSE > Class 12 > Biology

0 answers

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Misconceptions about aids

Posted by Lal Bahadur Singh 7 years, 6 months ago

CBSE > Class 12 > Biology

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Can you think how tapetal cells could becomes binucleated

Posted by Sonam Singh Rajput 7 years, 6 months ago

CBSE > Class 12 > Biology

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Both meiosis and fertilization are essential to maintain chromosomes no constant why

Posted by Harry Harjinder 7 years, 6 months ago

CBSE > Class 12 > Biology

0 answers

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KOIIII H

Posted by Swaggy Harshit 5 years, 8 months ago

CBSE > Class 12 > Biology

5 answers

Riddhi Khandalwal 7 years, 6 months ago

S mandal?

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Riddhi Khandalwal 5 years, 8 months ago

Tum Dream girl ko janta ho

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Swaggy Harshit 7 years, 6 months ago

Nhiii hoga

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Riddhi Khandalwal 7 years, 6 months ago

;Yar hum site Pa Apna name change kaisa kara

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Riddhi Khandalwal 7 years, 6 months ago

Ma hu

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What is meiocyte. Explain their role

Posted by Priya Dagar 7 years, 6 months ago

CBSE > Class 12 > Biology

0 answers

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What is sexual transmitting diseases

Posted by Dipanshu Bokade 7 years, 6 months ago

CBSE > Class 12 > Biology

1 answers

Shubham Sharma 7 years, 6 months ago

These are the diseases that are transferred from one person to another via sexual intercourse or by direct blood contact with the infected person .they are also known as veneral diseases (VD)

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What is aglutination ??

Posted by Ayushi Sambyal 7 years, 6 months ago

CBSE > Class 12 > Biology

1 answers

Shubham Sharma 7 years, 6 months ago

It is the process which occurs when an antigen is mixed with its corresponding antibody.

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All scietific names in the first chapter

Posted by Ragul Raj Ragul Raj 7 years, 6 months ago

CBSE > Class 12 > Biology

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If diploid angiosperm has 16 chromosome than how much chromosome does antipodal cell have and how ?

Posted by Sangeeta Nara 7 years, 6 months ago

CBSE > Class 12 > Biology

1 answers

Shubham Sharma 7 years, 6 months ago

8 . Because they are formed mitotically by the functional megaspore ( one of the four megaspore formed after separation of megaspore tetrad )

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Which of these purifies the blood Liver Or Kidney Or Alveoli ?

Posted by Charvi Sharma 7 years, 6 months ago

CBSE > Class 12 > Biology

2 answers

Shubham Sharma 7 years, 6 months ago

As well as liver both. Along with spleen is also involved in purifying it

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Shubham Sharma 7 years, 6 months ago

Kidney

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Which of these filters the blood Spleen Or Kidney?

Posted by Charvi Sharma 7 years, 6 months ago

CBSE > Class 12 > Biology

2 answers

Sangeeta Nara 7 years, 6 months ago

Kidney

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Shubham Sharma 7 years, 6 months ago

Kidney

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Explain luteal phase

Posted by Aakansha Sharma 7 years, 6 months ago

CBSE > Class 12 > Biology

1 answers

Shubham Sharma 7 years, 6 months ago

During this phase , the raptured Graafian follicle get converted into corpus luteum that secretes large amount of progesterone that in turn will maintain the endometrial layer of uterus . But if the ova is not fertilized the corpus luteum formed will degenerate leading to the breakdown of endometrium thereby initiating the menstrual phase of next menstrual cycle

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A pollen grain in angiosperm at the time of dihisece from an anther could be 2 celled or 3 celled .explain how are the cells placed within rhe pollen grain shed at a 2 celled stage

Posted by Aakansha Sharma 7 years, 6 months ago

CBSE > Class 12 > Biology

0 answers

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Which enzyme is responsible for the formation of peptide bond

Posted by Saloni Yadav 7 years, 6 months ago

CBSE > Class 12 > Biology

1 answers

Saloni S 7 years, 6 months ago

A peptide bond is formed between the amino group of the A site amino acid and the carboxyl group of the most-recently attached amino acid in the growing polypeptide chain attached to the P-site tRNA.The formation of the peptide bond is catalyzed by peptidyl transferase, an RNA-based enzyme

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Why is heart located at left in human body

Posted by Ridam Pandey 7 years, 6 months ago

CBSE > Class 12 > Biology