A scientist may use molecules - enzymes, proteins, DNA, RNA - to test for similarities, because if anatomy alone was used, it would be difficult to link traits and characteristics between the two organisms. For example, a rabbit has an endoskeleton and a closed circulatory system, while a fly has an exoskeleton and hemocoel.
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Phase where crossing over chromosomes occur is prophase 1
The client stating that he/she would eat meat sources like chicken or pork along with each meal proves that the nurse had been effective in successfully teaching about appropriate food choices for vitamin B12 deficiency.
Explanation:
Vitamin B12 is a highly essential vitamin but cannot be synthesized by the body on its own. Hence, needs to be supplemented through dietary sources or by supplements.
Dietary sources are only available in animal origin foods like fish, eggs, meat, poultry, milk and dairy products.
Clams are the highest source of B12 followed by beef liver, salmon, trout, milk, yoghurt, ham etc.
Few plant-based foods like cereals are fortified with high levels of vitamin B12 for vegetarians to avail dietary B12.
If someone holds their breath the amount of carbon dioxide does increase. If that is what you were asking.
