Bloodborne pathogen can be transmitted when blood or body fluid from an infected person enters another persons body via needle-sticks, himan bites, cuts, abrasions etc...
What things would result in population size change
Evolution is how we came to be as human beings ranging from rats, apes etc. This has helped us increase our survival skills and communication (ever since the beginning)
Answer:
Mother (with severe discoloration of tooth enamel) --> bob and Gladys.
From bob --> 4 daughters.
From Gladys --> 2 boys and 1 girl.
Explanation:
Mother with severe discoloration of tooth enamel transferred this trait to her offspring i. e. bob and Gladys. From bob, this trait is transferred to his 4 daughters while Gladys has 2 boys and 1 girl has this type of tooth enamel. This discoloration of tooth enamel comes from the women to their children and this characteristics is transferred from one generation to another generation.
