For which of the following problems would a scientist most likely use carbon-14?
A. to calculate the age of the Earth’s oldest rocks
B. to calculate the age of a piece of bone
C. to identify the elements that make up a rock
D. to identify the elements that make up a bone
Select your answer:

Topics:
Skeletal System PHE Healthy Lifestyle Health & Wellness Vocabulary Microbio (Viruses) Cell Cycle; Cancer The nervous system & brain Metabolic Sauver Vision & Hearing Skull Skeletal Muscle Anatomy DNA Replication DNA, RNA, Proteins Proteins Functional Anatomy in Track & Field Viruses and PrionsOther quiz:
Pathophysiology - Adaptive Immunity › ViewWhite blood cells are an important part of the human immune response. Two types of white blood cells, neutrophils and macrophages, act as phagocytes. Phagocytes perform which of the following functions in the human body?
A. They produce antibodies.
B. They bind to antigens and develop into plasma cells
C. They form a barrier against pathogens.
D. They engulf and destroy bacteria
Cell Review › View
The movement of materials that does NOT require energy is called…
A. active transport
B. passive transport
C. massive transport
D. proactive transport