Which sentence is FALSE?
A. All organisms have 23 pairs of DNA.
B. Chromosomes are made of genes.
C. DNA is made out of 4 chemicals: adenine, cytosine, thymine, guanine
D. DNA is the recipe for life.
Select your answer:

Topics:
Respiration, Immune System, Blood Cells Integumentary and Musculoskeletal System Macromolecules & Nutrients Lymphatic System Hemodynamic Disorder Pollution Tissues Vocabulary Gastroenterology Nursing Animal Nutrition Bacteriology Cardiovascular System Terminology Pediatric Cardiology Microorganisms, Health and Diseases Skeletal Tissue Physical and Sensory ImpairmentOther quiz:
Immunisation › ViewMany times people visit the doctor requesting antibiotics to treat colds and viral infections. How is the doctor justified in offering the patient treatment options that do not include antibiotics for these cases?
A. Colds and viruses should be first treated with viral therapies and then when the body begins to recover, antibiotics can be used. Otherwise, the use of antibiotics is not effective at all.
B. Side effects from antibiotics are severe when used for colds and viruses. Any use of antibiotics for colds and viruses will only make the patient more ill and ultimately make the patient’s recovery time longer.
C. Antibiotics can weaken the immune system when used for colds and viruses, whereas other medications are not so hard on the immune system during these types of illnesses.
D. If a doctor provides an antibiotic to treat colds and viruses, any bacteria in the patient’s body will be killed, but a few will survive. Those few survivors may become resistant to antibiotics needed for real bacterial illnesses.
Physio Intro Practice › View
A student wants to test the effects of type of exercise on heart rate. What is the dependent variable?
A. heart rate
B. type of exercise
C. amount of exercise
D. time of day exercise occurs