The flu vaccine changes every year. The flu vaccine is based on a predicted strain that is anticipated to be the most infectious that year. Thats why people who sometimes get the vaccination still get the flu, they don't have the antibodies for the strain they were infected with. Strains for viral disease don't change very much and usually the vaccination for them cover them well.
When the concentration o molecules inside a cell is different form the concentration of molecules outside a cell, we can either call it hypertonic or a hypotonic solution, and the difference between the two concentrations is called a concentration gradient.
Hypertonic - name given to a solution that has a bigger concentration than the concentration in a cell.
Hypotonic - name give nto a solution that has a smaller concentration than the concentration in a cell.
Hope it helped,
BioTeacher101
Mitosis in the stage prophase chromosome and DNA is copied
Answer:
The false statement is e. It is found only in gram-negative bacteria.
Explanation:
Drug resistance is a condition that is usually developed in bacteria because of the wrong use of medicines. This condition can cause a mutation and can be transferred with horizontal gene exchange, that does not require breed and it can happen between two grown bacteria. As it happens in all species of bacteria, therefore it's not only found in gram-negatives.
