Q: Answer the following question given this paragraph: The skin of many mammals is covered with sweat glands. The glands produce sweat, the salty fluid that helps cool the body. Q: What glands produce the salty fluid that helps cool the body of many mammals? Choices: - thyroid gland - water gland - endocrine gland - sweat gland A:
A: sweat gland

Q: Answer the following question given this paragraph: Reptiles cold-blooded, or ectothermic, meaning that their heat come from their environment. Sometimes defined as all amniotes that are not birds or mammals. Reptiles can be classified by skull structure into four groups: . Q: What term given to animals like reptiles is a synonym for ectothermic, which means that their heat comes from their environment? Choices: - warm-blooded - hot-blooded - thermal regulating - cold-blooded A:
A: cold-blooded

Q: Answer the following question given this paragraph: Did you ever wonder what happens to a candle when it burns? A candle burning is a chemical change in matter. In a chemical change, one type of matter changes into a different type of matter, with different chemical properties. Chemical changes occur because of chemical reactions. You can see more examples of chemical changes at this URL: http://www. youtube. com/watch?v=66kuhJkQCVM . Q: Chemical changes occur because of what? Choices: - liquid reactions - evaporation - toxic reactions - chemical reactions A:
A: chemical reactions

Q: Answer the following question given this paragraph: Water is the main ingredient of many solutions. A solution is a mixture of two or more substances that has the same composition throughout. Some solutions are acids and some are bases. To understand acids and bases, you need to know more about pure water. In pure water (such as distilled water), a tiny fraction of water molecules naturally breaks down to form ions. An ion is an electrically charged atom or molecule. The breakdown of water is represented by the chemical equation. Q: What is the term for a mixture of two or more substances that has the same composition throughout? Choices: - fluid - simple liquid - structure - solution A:
A: solution