Answer:
Why is the consumption of dietary supplements considered risky? because they are not officially tested by the government for effectiveness because manufacturers label them as natural but put harmful substances in them because their use can cause mental problems such as paranoia and irritability.
Answer:
The character of sickle cell anaemia does not get fixed in the population Because it has more disadvantages than advantages
Explanation:
Any character will get fixed in the population if the character provides the progeny certain advantage to reproduce better.The rate of malaria infection is low, but such people may have breathing difficulties and organs may fail due to the wrinkled RBC's not able to flow smoothly in the arteries and hence causing blockages. the character may be recessive but again the amount of oxygen carried per healthy RBC is less and that makes breathing difficult . so as a character its a disadvantage for the person who is a career and hence not being selected to be fixed.
<span>blood travels through the umbilical cord and to the fetus where it drops nutrients.
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I think those muscled in your neck is moving and where your bone is like that lump it is moving ,but you have to be careful not to not your head to hard or you might hurt a ligiment or muscle and it will go out of place