In a phylogenetic tree, the species which emerge from the same node are more closely related as compared to the other parallel species originating from the same ancestors but at a different node.
Hence, species A is more closely related to species B as compared to the relation between B and C. Option 5 is correct
Both the species B and E will share some characteristics as they have evolved from the same ancestors, though they do not emerge from the same node. Thus, option 4 is also correct.
Similarly A and C have some common characteristics. Thus, option 1 is correct
Most macromolecules are made from single subunits, or building blocks, called monomers. The monomers combine with each other using covalent bonds to form larger molecules known as polymers.
First of all, nylon 6 is only made from one kind of monomer, a monomer called caprolactam. Nylon 6,6 is made from two monomers, adipoyl chloride and hexamethylene diamine
An acid contains hydrogen that has the capability of donating proton (+) in a solution. So when an acid is dissolve in a solution, it releases hydogen ions.
