Question
Describe the Binomial system of classification.
| Common name | Scientific name |
| Pea | Pisum sativum |
| Wheat | Triticum aestivum |
| Earthworm | Pheretima posthuma |
| Lion | Panthera leo |
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(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
| Column A | Column B |
| Physiology | Tissues |
| Microbiology | Life-cycle |
| Embryology | Insects |
| Entomology | Cells |
| Cytology | Microbes |
| Histology | Vital activities |