MCQ
Which of the following adaptations help in evolution
- ✓Long term and heritable
- BShort term and heritable
- CLong term and nonheritable
- DShort term and nonheritable
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| Alveolar Air | Atmospheric Air | |
| $p O _{2}$ | $ X$ | $ Y$ |
| $pCO _{2}$ | $A$ | $B$ |

| Amino acid | R group |
| A. Glycine | i. Hydrogen |
| B. Alanine | ii. A methyl group |
| C. Serine | iii. Hydroxymethyl group |
| D. Alanine | iv. Isopropyl group |
