Question
Write down two unique characters of Porifera.
Write down two unique characters of Porifera.
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Enumerate four main types of animal tissues.
What does the term plasmolysed mean when used to describe a cell?
To what height should a box of mass 150kg be lifted, so that its potential energy may become 7350 joules? (8 = 9.8m/s2).
| | A | B |
| Protons | 18 | 20 |
| Neutrons | 22 | 20 |
What is its average speed during 0.5 second?