<span>occurring about every 5 minutes
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First answer is , as the work of ventricle is to push blood to he whole body , so it has to be strong or it can not pump blood to head to the toe !
as in frog (an amphibian ) it has only three chambers as two artia and one ventricle, so the oxygenated blood from left artia and deoxygenated blood from right , combines and thus partial oxygenated blood is circulated !
1. Reduced production of waste materials
2. Increased reuse of older materials
3. Use more renewable sources of energy
4. Decrease the rate of fires through alternate means of warmth
5. Burn down less forests and find better means of farming
Allele frequency:
Number of times an allele occurs in a gene pool compared with the number of alleles in that pool for the same gene
Air would go through the trachea, then the bronchi, the bronchioles, and then the alveoli.
