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    • Posted by Aman Gupta 8 years, 4 months ago

    CBSE > Class 11 > Biology
    • 0 answers
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    • Posted by Barkha Sethi 8 years, 4 months ago

    CBSE > Class 11 > Biology
    • 0 answers
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    • Posted by Rajnandani Verma 8 years, 4 months ago

    CBSE > Class 11 > Biology
    • 0 answers
    ANSWER

    • Posted by Rajnandani Verma 8 years, 4 months ago

    CBSE > Class 11 > Biology
    • 0 answers
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    • Posted by Vikram Singh 8 years, 4 months ago

    CBSE > Class 11 > Biology
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    ANSWER

    • Posted by A Z 8 years, 4 months ago

    CBSE > Class 11 > Biology
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    ANSWER

    • Posted by A Z 4 years, 9 months ago

    CBSE > Class 11 > Biology
    • 1 answers

    Sia ? 4 years, 9 months ago

    <colgroup> <col /> <col /> <col /> </colgroup>

    Criteria

    Spines

    Thorns

    Part of the plant

    Spines are modified leaves or part of leaves

    Thorns are modified branches

    Location

    They are placed at the same positions as leaves and have a bud in their axil

    Thorns develop in the axil of the bud in place of leaves and thus can only be seen at the node of the plant

    Connection to vascular tissue

    May not be connected to the vascular tissue as they are not placed too deeply

    Connected to the vascular tissue as they are placed deeply

    Function

    Protect the plant and prevent excess transpiration

    They protect the plant and act as the climbing part of the plant

    Formation

    They are formed from external tissues and are exogenous

    Thorns are formed from internal tissue and are called endogenous

    Examples

    Opuntia, Agave, Cactus

    Carissa, Duranta

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    • Posted by A Z 8 years, 4 months ago

    CBSE > Class 11 > Biology
    • 0 answers
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    • Posted by Mohit Sharma 8 years, 4 months ago

    CBSE > Class 11 > Biology
    • 1 answers

    A Z 8 years, 4 months ago

    Mineral ions is absorbed by the root hair of the plants. Root hair contains a number of active cells which absorbs minerals from the soil.

    2Thank You

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    • Posted by Abishek Sengottuvel 8 years, 4 months ago

    CBSE > Class 11 > Biology
    • 1 answers

    A Z 8 years, 4 months ago

    Factors affecting respiration in plants are- TEMPERATURE, LIGHT,WATER CONTENT,OXYGEN IN ATMOSPHERE, CONCENTRATION OF CARBON DIOXIDE and so on.

    1Thank You

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    • Posted by Deepanshu Garg 8 years, 4 months ago

    CBSE > Class 11 > Biology
    • 0 answers
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    • Posted by Deepanshu Garg 8 years, 4 months ago

    CBSE > Class 11 > Biology
    • 1 answers

    A Z 8 years, 4 months ago

    The specialised cells that transmit the electrical impulses to the brain and the nervous system is known as neuron. It is also called nerve cells.

    1Thank You

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    • Posted by Arbaj Khan 8 years, 4 months ago

    CBSE > Class 11 > Biology
    • 2 answers

    A Z 8 years, 4 months ago

    The organisms doing life processes and performing some special characters are known as living beings whether the organisms not showing such characters are said to be non living or dead.

    2Thank You

    Abishek Sengottuvel 8 years, 4 months ago

    Living are the life of the organism and opposite feature of non living

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    • Posted by Jaipal Kaith 8 years, 4 months ago

    CBSE > Class 11 > Biology
    • 1 answers

    Jaipal Kaith 8 years, 4 months ago

    pre existing cells

    1Thank You

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    • Posted by Gajendra Sahu 8 years, 4 months ago

    CBSE > Class 11 > Biology
    • 2 answers

    Satyarth Pandey 8 years, 4 months ago

    No

    2Thank You

    Gajendra Sahu 8 years, 4 months ago

    No

    2Thank You

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    • Posted by Shrinkhla Maurya 8 years, 4 months ago

    CBSE > Class 11 > Biology
    • 0 answers
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    • Posted by Ritik Kheraliya 8 years, 4 months ago

    CBSE > Class 11 > Biology
    • 0 answers
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    • Posted by Misba Naz 8 years, 4 months ago

    CBSE > Class 11 > Biology
    • 0 answers
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    • Posted by Aakash Panchal 8 years, 4 months ago

    CBSE > Class 11 > Biology
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    • Posted by Chintan Rajgor 8 years, 4 months ago

    CBSE > Class 11 > Biology
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    • Posted by Chintan Rajgor 8 years, 4 months ago

    CBSE > Class 11 > Biology
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    • Posted by Ritesh Rai 8 years, 4 months ago

    CBSE > Class 11 > Biology
    • 1 answers

    Chintan Rajgor 8 years, 4 months ago

    Uptake of oxygen by plants photo-plant respiration-taking oxygen

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    • Posted by Ishika Biswas 8 years, 4 months ago

    CBSE > Class 11 > Biology
    • 1 answers

    Chintan Rajgor 8 years, 4 months ago

    In plants--Rubisco Animal mein shyd Histone

    1Thank You

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    • Posted by Sana Khan 8 years, 4 months ago

    CBSE > Class 11 > Biology
    • 1 answers

    Chintan Rajgor 8 years, 4 months ago

    Diffusion in water via semipermeable membrane is osmosis,diffusion is movement of molecules from high conc.to low conc.

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    • Posted by Ritik Kheraliya 8 years, 4 months ago

    CBSE > Class 11 > Biology
    • 0 answers
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    • Posted by Dinesh Kumar 8 years, 4 months ago

    CBSE > Class 11 > Biology
    • 0 answers
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    • Posted by Yash Varshney 8 years, 4 months ago

    CBSE > Class 11 > Biology
    • 0 answers
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    • Posted by Vineeta Jeena 8 years, 4 months ago

    CBSE > Class 11 > Biology
    • 1 answers

    Prakrati Shukla 8 years, 4 months ago

    Its aorta.

    1Thank You

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    • Posted by Janvi Bharti 8 years, 4 months ago

    CBSE > Class 11 > Biology
    • 0 answers
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    • Posted by Himanshi Singla 8 years, 4 months ago

    CBSE > Class 11 > Biology
    • 2 answers

    Prakrati Shukla 8 years, 4 months ago

    N even when we talk about the Bita cells they are also called as antidiabetic factor cause it secreates insulin which helps control the glucose level in the blood n thus prevents diabetes . Further the stimulation of insulin depends on the higher level of glucose in the blood. It has a specific effect on specific target tissue - (here its 3)hepatocytes of liver , muscles ,adipocytes of adipocytes tissue.

    1Thank You

    Prakrati Shukla 8 years, 4 months ago

    Pancreas is an elongated yellow colour 2nd largest endocrine gland .Present at the loop of deodanum . Pancreas is a hetrocrine or a composite gland . The Endocrine part of pancreas is made up of 1-2million of epithelial cells called as islets of Langerhans (discovered by Langerhans in 1869) scattered in the connective tissue between acini . The endocrine part consists of 1-2% of the pancreatic mass. Pancreatic hormone - i.e. islets of Langerhans is made up of three types of cells. • Alpha cell - also called as oxyphiles . It secretes glycagon . • Bita cells - secretes insulin . • Gamma cells - these are the precursors of alpha and Bita cells. I know its too long but indeed important .

    1Thank You

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