the average height for men is 5.6 ft
C. a rise in blood carbon dioxide concentration
Explanation:
Negative feed back mechanism refers to the control mechanism in which a product of a particular pathway controls the switch on and switch off of that particular pathway.
Since breathing increases the blood oxygen concentration and lowers carbon dioxide concentration and pH. The sensors that regulate the breathing should respond to oxygen concentration as the carbon dioxide is the by-product of respiration and is responsible for increasing blood pH. Thus increased Carbon dioxide levels in blood is the only factor which will trigger breathing.
In the case of vaccines, we’re injected with antigens from a specific disease. Our body is able to make these antibodies as an immune response. This ensures that if we do get the disease, it will not likely be as serious because our bodies will already know how to fight it.
Answer:
0 : 1 ( black eyed : orange eyed )
Explanation:
When black eyed-Mendelian is crossed with orange-eyed Mendelian, the entire progeny has black eyes. This means that the allele for Black color is dominant to the color for orange color and it masks its effect completely in the next progeny.
BB X bb = Bb ( All black )
So orange Mendelian is a recessive trait and will have genotype bb. When two orange eyed Mendelians are crossed:
bb X bb = bb ( All orange since there is no B allele )
Hence, the phenotypic ratio will be = 0 : 1 ( black eyed : orange eyed )
