*Question*
Q: Which type of galaxies contain very little gas and dust, are red to yellow in color, contain over a trillion stars and have mostly old stars? Read this paragraph and choose the correct option from the provided answers: Giant elliptical galaxies contain over a trillion stars. Elliptical galaxies are red to yellow in color because they contain mostly old stars. Most contain very little gas and dust because the material has already formed into stars. Choices: - blue elliptical galaxies - giant orbital galaxies - giant gaseous galaxies - giant elliptical galaxies A:
**Answer**
giant elliptical galaxies

*Question*
Q: What is used to measure current through a resistor? Read this paragraph and choose the correct option from the provided answers: Ammeters measure the current through a resistor. Choices: - thermometers - spectrographs - microscopes - ammeters A:
**Answer**
ammeters

*Question*
Q: Cellular respiration that proceeds in the presence of oxygen is known as what? Read this paragraph and choose the correct option from the provided answers: Then, about 2 or 3 billion years ago, oxygen was gradually added to the atmosphere by early photosynthetic bacteria. After that, living things could use oxygen to break down glucose and make ATP. Today, most organisms make ATP with oxygen. They follow glycolysis with the Krebs cycle and electron transport to make more ATP than by glycolysis alone. Cellular respiration that proceeds in the presence of oxygen is called aerobic respiration . Choices: - digestive respiration - anaerobic respiration - kinetic respiration - aerobic respiration A:
**Answer**
aerobic respiration

*Question*
Q: What branch of biology focuses on heredity? Read this paragraph and choose the correct option from the provided answers: When zinc reacts with hydrochloric acid, the reaction bubbles vigorously as hydrogen gas is produced. The production of a gas is also an indication that a chemical reaction is occurring. Choices: - botany - cell biology - zoology - genetics A:
**Answer**
genetics