Select your answer:

Topics:
Macromolecules & Enzymes Cell Reproduction Characteristics of Life Ankle Injuries Genetics and Censorship Bone Marrow Histology Cell Bio Blood Typing Homeostasis - Vision Correction Pediatrics Emergency Medicine Biology for Engineers Reproductive System Vocabulary Blood Pathology Plant BiotechnologyOther quiz:
Genetics › ViewWhat is a gene?
A. A type of protein
B. The basic physical and functional unit of heredity made up of DNA
C. A cellular organelle
D. A molecule that helps in the synthesis of RNA
Nutrition › View
Which BEST explains why organisms need food?
A. Food is the source of energy required for growth and repair.
B. Food provides the raw materials for producers to produce more food.
C. Food is the source of water needed to hydrate the surface of cells.
D. Food provides the oxygen necessary for plant and animal survival.