chlorine because it has 7 electrons on the outer shell
During an influenza outbreak, many people get infected and die. However, part of the population acquires immunity and survives. This is due to variations in the genotype and phenotype among individuals in the population. Probably a particular phenotype confers resistance to influenza. Therefore, this population is able to grow and develop to maturity and reproduce. Their genes are therefore passed over to subsequent generations.
All cells in the body have the same DNA and the same genes. In organs & tissues the expression changes.
Answer:
the word 'structure' in biology has the following meaning;
"<em>An arrangement or organization of parts to form an organ, system, or living thing</em>"
