Compound
A. a living component of an ecosystem; for example organisms, such as plants and animals.
B. a substance made up of two or more different chemical elements combined in a fixed ratio.
C. a chemical substance that cannot be broken down into other substances. The basic particle that constitutes a chemical element is the atom, and chemical elements are distinguished from each other by the number of protons in the nuclei of their atoms
D. a molecule containing a very large number of atoms, such as a protein, nucleic acid, lipid, or carbohydrate
Select your answer:
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Cardiovascular System Terminology Reproductive System Vocabulary Vascular Surgery Cellular and Sexual Reproduction Genes and Cells Differentiation and Division of Human Cells Physical Education and Health Epidemiology Principles of Microbiology Cellular Transport and Metabolism T Cells Vision and Hearing Defects Respiratory System Med Term Disease Prevention Major Internal Organs of the BodyOther quiz:
History of Immunology › ViewWho discovered Complement system?
A. Bordet
B. Charles Richet
C. Paul Ehrlich
HHB Immunology › View
lymphocytes remaining in the body for many years after recovery from an infection
A. memory cells
B. phagocytosis
C. apoptosis
D. type 1 diabetes and rheumatoid arthritis