The origin of grains/cereals is that they were domesticated by ancient farming communities in the Fertile Crescent region.
The origin of nuts/seeds is fruits that naturally free themselves from the shell,
<h3>What are the types of grains?</h3>
- Wheat.
- Oats.
- Rice.
- Corn.
- Barley.
- Millet.
- Rye.
- Sorghum.
Hence, the types of nuts/seeds are:
- almonds.
- Brazil nuts.
- cashew nuts.
- hazelnuts.
- macadamias.
- pecans.
- pine nuts.
- pistachios.
Read more about nuts and seeds here:
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Balance is maintained by secreting bicarbonate ions or by absorbing them.
<u>Explanation:</u>
- Chemical buffers : fraction of a second , ties up excess of H+ or bases temporarily.
- Respiratory buffers: within a minute , maintaining or reducing the level of CO2.
- Renal buffers: hours or takes even days, moves away metabolic acid and excess of base.
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the answer is clearly b) losing a loved one in an accident
