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The reason for this is due to the process of Meiosis involving an additional cell division step.Mitosis involves 1 cell, which replicates it's DNA resulting in there being 2 'full sets' of chromosomes con...
The lungs are specifically adapted for gas exchange (diffusion) - meaning the lungs allow oxygen into the blood stream and carbon dioxide out. To ensure our cells can respire properly, we want fast and ef...
An increase in muscular activity increases the rate of aerobic respiration. As a result, more carbon dioxide is formed in the Krebs cycle and the pH is lowered. This reduction in pH is detected by chemore...
Speciation can be sympatric (both populations in the same place) or allopatric (populations in different places). Speciati...
The sino-atrial node depolarises which causes a wave of excitation to pass through the atria (right prior to left) before reaching the atrio-ventricular node. The wave of excitation causes systole of the ...
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