Answer the following question given this paragraph: Q: Hormones often regulate what through antagonistic functions? Choices: - hypothesis - consciousness - breathing - homeostasis A:
homeostasis
Answer the following question given this paragraph: Earth is the only planet in the solar system that has water in all three states. Q: Earth is the only planet in the solar system that has what element, which is essential for human life, present in all three of its states? Choices: - helium - oxygen - carbon - water A:
water
Q: Answer the following question given this paragraph: Q: What helps form the walls of internal organs such as the heart and stomach? Choices: - blood - tissues - valves - muscles A:
A: muscles
Question: Answer the following question given this paragraph: Placenta of a Placental Mammal (Human). The placenta allows the exchange of gases, nutrients, and other substances between the fetus and mother. Q: What mammalian structure allows the exchange of gases, nutrients, and other substances between the fetus and mother? Choices: - uterus - mitochondria - notochord - placenta A:
Answer: placenta
*Question*
Answer the following question given this paragraph: If plaque blocks coronary arteries that supply blood to the heart, coronary heart disease results. Poor blood flow to the heart may cause chest pain or a heart attack. A heart attack occurs when the blood supply to part of the heart muscle is completely blocked so that cardiac muscle cells die. Coronary heart disease is the leading cause of death in U. S adults. Q: Coronary heart disease is caused when what blocks coronary arteries? Choices: - proteins - carbohydrates - fats - plaque A:
**Answer**
plaque
Q: Answer the following question given this paragraph: A resource is renewable if it is remade by natural processes at the same rate that humans use it up. Sunlight and wind are renewable resources because they will not be used up ( Figure below ). The rising and falling of ocean tides is another example of a resource in unlimited supply. A sustainable resource is a resource that is used in a way that meets the needs of the present without keeping future generations from meeting their needs. People can sustainably harvest wood, cork, and bamboo. Farmers can also grow crops sustainably by not planting the same crop in their soil year after year. Planting the same crop each year can remove nutrients from the soil. This means that wood, cork, bamboo, and crops can be sustainable resources. Q: What is the term for a resource that is used in a way that meets the needs of the present without keeping future generations from meeting their needs? Choices: - tolerable - innovative - structural - sustainable A:
A: sustainable