In an experiment to test the effectiveness of a new vaccine, 50 rats received an injection of equal doses of the vaccine and 50 other rats received an injection of equal doses of a weak salt solution. Two months later, all of the rats received injections that contained equal doses of live, disease-causing organisms. The experimental results are shown in the chart below:
Effectiveness of New Vaccine
Injection: 50 Rats Received
Number of Rats That Developed the Disease
Number of Rats That Did Not Develop the Disease
Vaccine
7
43
Weak Salt Solution
48
2

Based on the experiment in Task 3, propose two suggestions that could improve the results of this experiment. Explain how these suggestions could help to better verify if the vaccine is ready for human testing.

The movement of tectonic plates in two different locations is shown below: two blocks labeled location a and location b are shown. at location a the top layer of the block shows two horizontal arrows pointing towards each other. small dunes are shown in the middle between the two arrows. the block labeled b has a vertical line in the middle. on the left of the line there is an arrow pointing down. on the right of the vertical line there is an arrow pointing up which statement is most likely true? subduction may occur in both locations. earthquakes may occur in both locations. subduction may occur in location a only and a volcanic eruption may occur in location b only. an earthquake may occur in location a only and a volcanic eruption may occur in location b only.

In which process is oxygen absorbed by an organism asap apex

Which chemical equation is unbalanced? which chemical equation is unbalanced