Ques: Answer the following question given this paragraph: The stored chemical energy in organic matter or wastes is called biomass energy. The organic matter may be trees or other plants, or it may be wastes from homes and industries. When biomass is burned, it produces thermal energy that can be used for heating homes, cooking, or generating electricity. Biomassespecially woodis an important energy source in the poorer nations where most people can't afford fossil fuels. However, burning biomass releases air pollution and contributes to global climate change. Biomass can be used to make ethanol, a fuel that is added to gasoline. Although ethanol releases less pollution than gasoline, large areas of land are needed to grow the plants needed to make it (see Figure below ). This reduces the amount of land available for food production. Q: What is the term that refers to stored chemical energy in organic matter or wastes? Choices: - nuclear energy - potential energy - starch energy - biomass energy A:
Ans: biomass energy

Ques: Answer the following question given this paragraph: Q: What are living echinoderms divided into five of? Choices: - classifications - species - sexes - clades A:
Ans: clades

Ques: Answer the following question given this paragraph: high proportion of amino acids in the protein have nonpolar side chains. The term hydrophobic interaction is often misused as a synonym for dispersion forces. Hydrophobic interactions arise because water molecules engage in hydrogen bonding with other water molecules (or groups in proteins capable of hydrogen bonding). Saylor URL: http://www. saylor. org/books. Q: Hydrophobic interactions arise because water molecules engage in what type of bonding with other water molecules? Choices: - aquatic bonding - oxygen bonding - helium bonding - hydrogen bonding A:
Ans: hydrogen bonding

Ques: Answer the following question given this paragraph: Endocytosis is the process of capturing a substance or particle from outside the cell by engulfing it with the cell membrane. The membrane folds over the substance and it becomes completely enclosed by the membrane. At this point a membrane-bound sac, or vesicle pinches off and moves the substance into the cytosol. There are two main kinds of endocytosis:. Q: What is the process of capturing a substance or particle from outside the cell by engulfing it with the cell membrane? Choices: - metastasis - autolysis - ectocytosis - endocytosis A:
Ans:
endocytosis