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.
Answer:
The nose can detect about _______ different smells.
A. 45,000
B. 30,000
<u>C. 10,000 </u>
D. 25,000
Explanation:
Answer:
It should be about 1-2 hours earlier than adults. Because their body is still growing. A teen has to sleep at least 9 hours, and a adult only have to sleep 7-9 hours.
bacteria have the DNA as well as the tools (such as ribosomes and proteins) in order to reproduce themselves. While viruses only contain limited DNA and no not have the necessary tools.
bacteria reproduces asexually. a virus reproduces by invading a host cell casing the cell to make copies of the DNA(RNA). destroying the host cell and releasing the virus.
