Answer:
it was only 90 percent effective
Explanation:
In 1954 a massive controlled field trial was launched, sponsored by the National Foundation for Infantile Paralysis. Almost two million U.S. children between the ages of six and nine participated. In some areas of the country half of these “Polio Pioneers” received the vaccine, while half received a placebo. In other areas of the country children who did not receive any vaccine were carefully observed. On April 12, 1955, Thomas Francis, Salk’s mentor and the director of the trial, reported that the vaccine was safe, potent, and 90% effective in protecting against paralytic poliomyelitis.
Secondary Closure or Second intention
Answer:
The answer is below
Explanation:
The lines of latitude run from the east to the west and is used to measure the distance from the north to the south of the equator. There are different lines of latitude such as the equator (0°), north pole (90° N), south pole (90° S).
The North and South poles are most similar to the plate with an axis angle of 80° because sunlight hits these points at least at an axis angle of 80.
Answer:
One cell Fungi are made up of one cell.
Explanation:
If Janelle wants to prove her hypothesis using the scientific process, what she should do next is to run an experiment because once the individual has undergone to a scientific process and she has stated her hypothesis, the individual should start running her experiment in means of testing her hypothesis that will help her in distinguishing whether her hypothesis is correct or not.
