Q: The fuel that burns in a combustion reaction in many fossil fuels such as natural gas that consists of carbon hydrogen is known as what? Choices: - helium - catalyst - fossil - hydrocarbon A:
hydrocarbon

Q: Amphibians have permeable skin which allows for the exchange of oxygen and carbon dioxide, what is this "breathing called?" Choices: - variant respiration - benign respiration - aquatic respiration - cutaneous respiration A:
cutaneous respiration

Q: Q: People with osteoporosis have an increase risk of what? Choices: - cancer - muscle loss - weight loss - bone fractures A:
A: bone fractures

Question: Q: When does sublimation occur? Choices: - when the wind changes direction - when the snow melts the ice caps - when the ice and sand change directly into water vapors - when the ice and snow change directly into water vapors A:
Answer: when the ice and snow change directly into water vapors

*Question*
Q: What is a disease characterized by high concentrations of glucose in the blood? Choices: - myeloma - hepatitis - leukemia - diabetes A:
**Answer**
diabetes

Q: What type of relationship occurs between organisms when one member benefits without affecting the other? Choices: - cooperative - bilateral - parasitic - commensalism A:
commensalism