Usually when you are trying to figure out different possibilities of offspring using punnet squares, 4 genotypes can be figured out. I think that it also depends on how you are finding out the different genotypes for offspring.
Answer
Correct answer is :It has two elements
Explanation
A binary compound is a compound that is made up of two of the elements in the periodic table. Some examples of binary compounds are 
and 
. This means that a binary compound can have more than 2 atoms as in the case of hydrogen oxide. Some binary compounds are ionic as in the case of sodium chloride.This shows that they do not necessarily have to have covalent bonds. This also rules out the possibility that they may always have double bonds as ionic compounds are bound together by ionic bonds. The only thing that will always be true of binary compounds is that they will always have 2 elements.
Answer: Retinalogical
Explanation:
Vitamin A is a fat soluble vitamin that can be stored in the body.It belongs to the group of unsaturated organic compound which has nutritional qualities in them. Vitamin A includes retinol, retinal and retinoic acid and few provitamin A.
It has multiple functions in the body. It is very essential for eyes. It acts as the growth factor for the epithelial cells and other cells in the body.
It is also required for a good immune system inside the body.
Hence, retina logical is not an active form of Vitamin A.
Food webs show the flow of energy (stored as organic molecules) through ecosystems. Thus, a scientist would use a food web to show the flow of energy through an ecosystem.
