Not sure if I'm correct but my best guess is the cell membrane seeing as it surrounds the cell itself and is responsible for allowing certain molecules to diffuse in or out of the cell. Good Luck! :)
A
It is used to represent the number of atoms in the element. H2O is 2 Hydrogen molecules and one oxygen molecule, however we don’t wright the 1.
A fixed allele is an allele that is the only variant that exists for that gene in all the population
Answer:
C
Explanation:
Looking at each embryo at the begining you can tell they are very similar, in fact its almost impossible to tell the difference. this tells us that they have a common ancestor because the orignal cells of the embryos are so similar
Answer:
Explanation:
DNA contains the instructions needed for an organism to develop, survive and reproduce.
Contains the genetic instructions for the development and function of living things
The main role of DNA in the cell is the long-term storage of information.
