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Tendrils are found in the following plants. Identify whether they are stem tendrils or leaf tendrils.
Cucumber
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Tendrils are found in the following plants. Identify whether they are stem tendrils or leaf tendrils.
Pumpkins
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Tendrils are found in the following plants. Identify whether they are stem tendrils or leaf tendrils.
Grapevine
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Tendrils are found in the following plants. Identify whether they are stem tendrils or leaf tendrils.
Watermelons
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Tendrils of grapevines are homologous to the tendril of pumpkins but are analogous to that of pea. Justify the above statement.
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Describe various stem modifications associated with food storage, climbing and protection.
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Stolon, offset and rhizome are different forms of stem modifications. How can these modified forms of stem be distinguished from each other?
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Seeds of some plants germinate immediately after shedding from the plants while in other plants they require a period of rest before germination. The later phenomena is called as dormancy. Give the reasons for seed dormancy and some methods to break it.
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To which one of the following categories does adipose tissue belong?
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Which one of the following is not a connective tissue?
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Match the following and choose the correct option
| Column I | Column II |
| A. Adipose tissue | i. Nose |
| B. Stratified epithelium | ii. Blood |
| C. Hyaline cartilage | iii. Skin |
| D. Fluid connective tissue | iv. Fat storage |
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Why are blood, bone and cartilage called connective tissue?
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What is special about tissue present in the heart?
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Write down the common features of the connective tissue. On the basis of structure and function, differentiate between bones and cartilages.
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Briefly describe the cell theory.
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Briefly give the contributions of the following scientists in formulating the cell theory
- Robert Virchow
- Schielden and Schwann
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Write the function of the following:
Cell wall
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When we homogenise any tissue in an acid the acid soluble pool represents ______.
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The most abundant component of living organisms is ______.
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Which metal ion is a constituent of chlorophyll?
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