Answer the following question given this paragraph: Perhaps the most familiar liquid-solid solution is dental amalgam, used to fill teeth when there is a cavity. Approximately 50% of the amalgam material is liquid mercury to which a powdered alloy of silver, tin and copper is added. Mercury is used because it binds well with the solid metal alloy. However, the use of mercury-based dental amalgam has gone under question in recent years because of concerns regarding the toxicity of mercury. Q: The use of mercury-based dental amalgam has gone under question in recent years because of concerns regarding what? Choices: - the expense - the oxygen - the variability - the toxicity A:
the toxicity
Answer the following question given this paragraph: Q: What kind of symmetry do echinoderm larvae have? Choices: - internal - radial - spherical - bilateral A:
bilateral
Q: Answer the following question given this paragraph: The cytosol is the jelly-like material in which the contents of the cell are suspended. Q: What is the jelly-like material in which the contents of the cell are suspended? Choices: - jam - cortisol - mitochondrial - cytosol A:
A: cytosol
Question: Answer the following question given this paragraph: Excretion is the process of removing wastes and excess water from the body. It is one of the major ways the body maintains homeostasis. Organs of excretion make up the excretory system. They include the kidneys, large intestine, liver, skin, and lungs. Q: What is the process of removing wastes and excess water from the body? Choices: - depletion - diffusion - ingestion - excretion A:
Answer: excretion
*Question*
Answer the following question given this paragraph: Yes! The outer core, anyway. The outer core is liquid metal, like in this photo. Of course, the metal is under an incredible amount of pressure. Q: What is the outer core made of? Choices: - compressed air - solid rock - solid iron - liquid metal A:
**Answer**
liquid metal
*Question*
Answer the following question given this paragraph: Maintaining a high metabolic rate takes a lot of energy. The energy must come from food. Therefore, mammals need a nutritious and plentiful diet. The diets of mammals are diverse. Except for leaf litter and wood, almost any kind of organic matter may be eaten by mammals. Q: Maintaining a high metabolic rate takes a lot of what? Choices: - food - calories - fuel - energy A:
**Answer**
energy