Answer:
A nucleotide is the basic building block of nucleic acids. RNA and DNA are polymers made of long chains of nucleotides. A nucleotide consists of a sugar molecule (either ribose in RNA or deoxyribose in DNA) attached to a phosphate group and a nitrogen-containing base.
Explanation:
1. natural selection acts on existing traits because you can not evolve into something you didn't have
2. original structures evolve to accomplish new function in order to survive
They contain genetic information and assist in making proteins
It means that two or more cells connected together.
You can look at the word 'cell' and 'conjunctions' separately. 'Cell' is a tiny particle. 'Conjunctions' means 'two or more things connected', so just put the two meanings together.
Hope this helps. :)
Answer:cell wall
Explanation:The cell wall in plant cell is made of cellulose and functions to provide rigidity to the cell. Cell wall has no living function
