Multiple Choice Question Cells can be best described as ______ the basic unit of life the fundamental elements of matter the highest level of biological organization large complex molecules
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Which level of biological organization is the basic unit of LIFE because it can perform all the activities required for life? 1) DNA 2) cell 3) organelle 4) molecule 5) atom
Adi S.
Addition to the classical cell theory was A. cells contain hereditary information (DNA) which is passed from cell to cell during cell division. B. protein is the basis of life C. cells can arise from inanimate matter D. prokaryotic cells were the first to form. One of the functions of cholesterol molecules in animal cell membranes is to a) facilitate transport of ions b) store energy c) maintain heat and membrane fluidity d) produce ATP. Unbound nucleoid region, complex cell wall, small ribosomes, and circular DNA A. prokaryotes B. eukaryotes C. archaea D. protists. New properties that arise with each step upward in the hierarchy of life, owing to the arrangement and interactions of parts as complexity increases. A. biodiversity B. the cycle of life C. emergent properties D. natural selection. A testable explanation for a set of observations based on the available data and guided by inductive reasoning. A. experiment B. theory/hypothesis C. research and development D. control group. What is the most abundant compound found in living things? A. hydrogen B. carbon C. ammonia D. water. The pH scale measures the concentration of ions, more being acidic, and ions, more being basic. A. hydroxide – hydrogen B. negative – positive C. hydrogen – hydroxide D. organic – inorganic. According to the pH Scale, a solution that is extremely acidic – gastric juice and lemon juice – will have a value of. A. 7 B. 5 C. 2 D. 14. A substance that minimizes changes in the concentrations of hydrogen ions and hydroxide ions is considered A. a buffer B. an acid C. a base D. a reagent. Pertaining to the Organization of Life, which choice represents the simplest to the most complex: A. atom – cell – organ – tissue – organelle – organ system B. atom – cell – organ - organelle – tissue – organism C. atom - molecule – organelle – cell – tissue – organ – organ system - organism D. atom – molecule – organelle – cell – organ – tissue – organism. DNA is a double helix molecule whos building blocks are A. amino acids B. polypeptides C. nucleotides D. carbohydrates
The basic, living structural and functional unit of a living organism is known as the: a. organ b. tissue c. cell d. organism
Madhur L.
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