Answer:
A filter is a transparent material that absorbs some colors and allows others to pass through. ... A yellow color filter will let through only yellow and absorb all other colors. So when blue light is allowed through a blue filter onto a blue object, the object will still reflect blue and therefore appear blue.
Answer:
If a person has extra chromosome you or they might have down syndrome
Explanation:
Normally a baby inherits 23 chromosome from each parent which is equal to 46 total and basically those who survive develop down syndrome
Answer:
An independent variable is one which can be changed or manipulated in an experiment. The effect of the independent variable is observed on the dependent variable. The dependent variable is the one which does not change or manipulated in an experiment by the investigator. The changes that occur in the dependent variable with respect to the independent variable is the outcome of the experimentation process.
In the given situation, the medicine and the placebo drug are the independent samples whereas the effect of the medicine and placebo drug can be observed on the time they require to cure the headache is the dependent variable.