MCQ
The tissue made up of thin-walled rectangular cells responsible for the secondary growth is
- ACortex
- BXylem
- ✓Cambium
- DPith
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| Column $I$ | Column $II$ |
| ($a$) Aptenodytes | ($i$) Flying fox |
| ($b$) Pteropus | ($ii$) Angel fish |
| ($c$) Pterophyllum | ($iii$) Lamprey |
| ($d$) Petromyzon | ($iv$) Penguin |