Which occurrence represents an example of evolution?
A. Exposure to radiation reduces the rate of mutation in leaf cells.
B. A mutation in a liver cell causes a person to produce an enzyme that is less efficient.
C. Cells in a zygote eventually change into bone cells or skin cells
D. Some antibiotics are almost useless, because pathogens have developed a resistance to these antibiotics.
Select your answer:
Topics:
Brain/Neuron Anatomy Heterotrophic Nutrition Cardio and Resp Disorders Reproduction in Human Beings Nutrition form 2 Urinalysis/ Immunology Make up Thyroid Gland ICU Mental Health Disease, Illness and Sickness Cosmetology Psychology Infectious Diseases Endodontic Surgery Bacterial Protein Synthesis InhbitorsOther quiz:
Blood clotting › ViewWhat substance is needed to convert fibrinogen to fibrin?
A. Thrombokinase
B. Thrombin
C. Prothrombin
D. Thrombus
The Skeletal System › View
When do bones stop growing?
A. Age 20
B. Age 15
C. Age 25
D. Bones don’t grow