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Questions in biology

📝 Answered - Control of homeostasis in the body is accomplished by: A. Nervous system B. Circulatory system C. Endocrine system D. Both the Nervous and Endocrine systems control homeostasis

📝 Answered - Which phrase describes the structure of cilia? A. Long, whiplike structures B. Short, hairlike structures C. Stringy extensions on a cell's surface D. Thick, fibrous projections

📝 Answered - Which type of scientific statement is defined as "a possible explanation or answer to a scientific question that is based on prior knowledge or research and is testable"? A. Hypothesis B. Theory C. Law D. Probability

📝 Answered - Which series shows levels of organization in order from the smallest to the largest structure? A. cell, molecule, atom, organism B. cell, atom, molecule, organism C. molecule, atom, cell, organism D. atom, molecule, cell, organism

📝 Answered - Which of these is caused by the interaction between the atmosphere and the hydrosphere? A. Drying up of rivers B. Building dams out of rocks C. Formation of underwater volcanoes D. Growth of plants due to heavy rainfall

📝 Answered - Which best describes a codon? A. A cell structure that gives the master instructions for an organism B. A segment of DNA that is the basis of heredity in organisms C. The sequence of three bases that codes for a specific amino acid D. The basic unit of structure and function of all living things

📝 Answered - Which of the following statements about matter is true? A. Mass and matter are always the same. B. Matter is made up of atoms and has mass. C. Mass can decrease while matter increases. D. Matter does not exist in the biosphere.

📝 Answered - Which of the following statements is true? A. Acquired mutations are passed down from parent to offspring. B. Mutations are the most fundamental way to add new genes to a gene pool. C. Hereditary mutations are caused by external factors, such as radiation. D. Only somatic mutations are important to evolution because they can be inherited.

📝 Answered - A muscle cell undergoes glycolysis to generate pyruvate. Considering that the cell remains under aerobic conditions and moves on to the ETC via the Krebs cycle, which of the following would be the final electron acceptor in this case? A. Hydrogen B. Nitrate C. Oxygen

📝 Answered - If the contents of a cell have a solute concentration of 0.04 percent, which of these solutions would cause it to swell? A. 10–percent solute concentration B. 1–percent solute concentration C. 0.1–percent solute concentration D. 0.01–percent solute concentration