A chemical reaction is a process in which one or more substances are changed into new substances.
An example of a chemical reaction is when metal rusts.
Answer:
Type O
Expresses the B agglutinin
Expresses all the major antibodies
The most common US blood type
The universal donor
Type AB+
Expresses all of the major antigens
Expresses the D antigen
The least common US blood type
The universal acceptor
Expresses the Rh factor
Expresses A agglutinogen
Explanation:
Blood type is a grouping of blood into classes that have the presence or absence of antibodies and or antigens on the red blood cell surfaces
The class of blood determines whether the antigens are glycolipids, carbohydrates, proteins or glycoproteins of Type O
The blood type of a person is an inherited trait from both parental gene. There are various blood grouping system with the ABO and Rh systems being the most important as they determine the suitability of a given blood for transfusion.
Answer:

Explanation:
Straight wings are dominant over curved wings
Let Straight wings : H
curved wings : t
smooth eyes are dominant to sparkling eyes
let smooth eyes = H
spark ling eyes = t
tan body is dominant to ebony body color.
Again; Let tan body color be H
Let ebony color be t
If flies that are heterozygous for all three traits are crossed;
we have HtHtHt × HtHtHt
Then the selected trihybrid traits for the cross will be (HHH,HHt, HtH, Htt, tHH, tHt, ttH, ttt)
We will realize that from the punnet square in the diagram below, the proportion of the offspring would you expect to be heterozygous for all three traits (i.e HtHtHt) is asterisk in the punnet square and will be 
= 
Good roots, sunlight, and a stable base