Answer the following question given this paragraph: Q: Within organs, arteries branch into what small vessels that convey blood to the capillaries? A:
OPTIONS:
- Metarterioles
- blood valves
- aeortic vessels
- arterioles
arterioles

Answer the following question given this paragraph: Cells are organized into tissues, and tissues form organs. Q: Tissues are organized by what? A:
OPTIONS:
- branches
- lipids
- structures
- cells

Answer: cells

Question: Answer the following question given this paragraph: Atoms have protons and neutrons in the center, making the nucleus, while the electrons orbit the nucleus. The modern atomic theory states that atoms of one element are the same, while atoms of different elements are different. What makes atoms of different elements different? The fundamental characteristic that all atoms of the same element share is the number of protons. All atoms of hydrogen have one and only one proton in the nucleus; all atoms of iron have 26 protons in the nucleus. This number of protons is so important to the identity of an atom that it is called the atomic number of the element. Thus, hydrogen has an atomic number of 1, while iron has an atomic number of 26. Each element has its own characteristic atomic number. Atoms of the same element can have different numbers of neutrons, however. Atoms of the same element (i. , atoms with the same number of protons) with different numbers of neutrons are called isotopes. Most naturally occurring elements exist as isotopes. For example, most hydrogen atoms have a single proton in their nucleus. However, a small number (about one in a million) of hydrogen atoms have a proton and a neutron in their nuclei. This particular isotope of hydrogen is called deuterium. A very rare form of hydrogen has one proton and two neutrons in the nucleus; this isotope of hydrogen is called tritium. The sum of the number of protons and neutrons in the nucleus is called the mass number of the isotope. Saylor URL: http://www. saylor. org/books. Q: All atoms of the same element share the same number of what type of particle? A:
OPTIONS:
- quarks
- neutrons
- nucleus
- protons
Answer: protons

input with options: Answer the following question given this paragraph: The kidneys also need constant pressure to filter the blood. When the blood pressure drops too low, the kidneys increase the pressure. One way is by producing angiotensin, a blood vessel-constricting protein. This protein also signals the body to retain sodium and water. Together, the constriction of blood vessels and retention of sodium and water help restore normal blood pressure. Q: What organs need constant pressure to filter the blood? A:
OPTIONS:
- lungs
- dialysis
- arteries
- kidneys
output: kidneys

Q: Answer the following question given this paragraph: All amphibians have digestive, excretory, and reproductive systems. All three of these organ systems use a single body cavity, called the cloaca. Wastes enter the cloaca from the digestive and excretory systems. Gametes enter the cloaca from the reproductive system. A single external opening in the cloaca allows the wastes and gametes to exit the body. (Many other four legged vertebrates also have a cloaca. ). Q: An external opening in the what of amphibians allows wastes and gametes to exit the body? A:

OPTIONS:
- anus
- oral cavity
- urethra
- cloaca

A: cloaca

Answer the following question given this paragraph: Image copyright SergiyN, 2014. Coil of copper wire, which conducts electricity well due to metallic bonds . Used under license from Shutterstock. com. Q: What gives a coil of copper wire the ability to conduct electricity well? A:
OPTIONS:
- optical bonds
- metallic electrons
- metallic ions
- metallic bonds
metallic bonds