The correct answer would be 5 for this.
Answer: Time is the independent variable, and the number of birds is the dependent variable.
Explanation: The independent variable is a variable that's variation doesn't depend on that of another (it's independent!); or in simpler words, it's the variable that is being changed but is not being measured. It is also often denoted by x. The dependent variable is a variable that's values does depend on that of another (it's 'dependent')-- or it's basically the variable that's be measured. Hope this helps! :)
Well stress can cause a lot of health issues. This question is asking how prolonged stress results in the increase in illnesses. Prolonged stress can cause for example; Anxiety Disorder, High Blood Pressure, Mental Disorder, Irritable Bowl Syndrome, Diabetes, and more. I am not sure about choice A because that is not necessarily correct. A stressful life can trigger asthma if you have the condition already so choice B is a possibility. Stress almost always has an effect on the immune system so choice C is the best answer so far. Stress could cause the fight of flight response but I don't think that choice D is what they are looking for.
I would say choice C.
Hope This Helps!
<span>There are approximately 100 billion neurons in the human brain. and at least 20% is for energy. hope this helps!</span>
