Variables
This is the variable the scientist changes
Poor air quality can cause cognitive decline. What body system does that affect?
Nervous system
Why should we not overuse antibiotics?
Bacteria can mutate and become resistant to the antibiotics, making them harder to treat.
What macronutrient breaks down into sugars when digested by your body?
Carbohydrates
Why can't scientists always use an experiment to find causation for diseases?
Unethical to ask people to do things that might harm their health
What does the scientist do with the dependent variable?
Melanoma
Virus, bacteria, fungi, parasites (protozoa)
What is a person's BMR?
Metabolism: How many calories a day they burn at rest.
What is the placebo effect?
A phenomenon in which the body responds positively to a fake treatment because a person has positive expectations.
Name a lurking/confounding variable for following relationship:
Shoe size and Reading level
Age of the person
This is the name of the air pollution of solids and liquids dissolved in the air.
Particulate matter
HIV affects the body by attacking...
The body's immune system (CD4 cells)
A person's BMI is determined by what 2 factors?
Height & Weight
A calorie is the measure of...
How much energy is in food.
In the experiment where the scientist is testing "How the amount of laundry detergent affects its ability to reduce the size of a stain?" what is the IV?
Amount of laundry detergent
How do UV rays increase the risk of skin cancer?
Causes the DNA in the cell to mutate.
How does a vaccine work?
It exposes your immune system to a portion of the pathogen (not enough to get you sick), so that your forms memory immune cells that can recognize the pathogen if you get infected.
What are the two type of vitamins?
Water soluble and Lipid soluble
Why is having a stigma attached to an illness harmful?
People are less likely to disclose their status/get treatment AND/OR research is less likely to get funded.
In the experiment where the scientist is testing "How the amount of laundry detergent affects its ability to reduce the size of a stain?" what is the DV?
Size of the stain
What does melanin do?
Protects your skin cells by absorbing UV rays and preventing them from damaging your DNA.
What is herd immunity?
When a large enough % of the population has been vaccinated that the unvaccinated are reasonably protected and/or prevent an epidemic.
How does a calorimeter determine calories?
Burns food and measures the change in water temperature.
What are the 4 macronutrients and 2 micronutrients your body needs?
Protein, carbohydrates, water, fat, vitamins, minerals