Simple and Complex tissues
| Simple tissue | Complex tissue |
| 1. Simple tissues are made up of single type of cells. | Complex tissues are made up of different type of cells. |
| 2. Simple tissue consists of parenchyma, collenchyma and sclernchyma. | Complex tissue consists of xylem and phloem. |
| 3. It occurs in all parts of plant. | It occurs only in vascular region. |
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| Column A | Column B |
| Ichthyology | Viruses |
| Ornithology | Fishes |
| Ecology | Birds |
| Virology | Cells |
| Herpetology | Diseases |
| Paleontology | Fossils |
| Cytology | Snakes |
| Pathology | Environment |
| Column A | Column B |
| (a) Generative nucleus | (i) Pollen tube |
| (b) Germ pore | (ii) Endosperm nucleus |
| (c)Exine | (iii)Testa |
| (d) Secondary nucleus | (iv) Fertilization |
| (e) Integument | (v) Male nuclei |
| (f) Egg nucleus | (vi) Rough |
| Mineral | Function | Rich Source |
| Iodine | __________ | ___________ |
| ___________ | Formation of haemoglobin | ___________ |
| Calcium | __________ | ___________ |
| Potassium | __________ | __________ |
(One of the extinct animals which lived on the Earth about 100,000,000 years ago) Tyrannosaurus was about six meters long and it preyed upon other animals.

What do you think about its classification-was it an amphibian, a reptile or a mammal?
Can you call it a relative of Kangaroo?Yes/No.Give reason