Ques:Answer the following question given this paragraph: They are ectothermic , meaning their temperature depends on the temperature of their environment. Ectothermic animals are cold-blooded in that they cannot raise their body temperature on their own. This is unlike humans, whose temperature is controlled from inside the body. Q: What is the term for animals that cannot raise their body temperature on their own? Choices: - endothermic - catabolic - warm-blooded - ectothermic A:

Ans:ectothermic
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Ques:Answer the following question given this paragraph: A food chain represents a single pathway by which energy and matter flow through an ecosystem. An example is shown in Figure below . Food chains are generally simpler than what really happens in nature. Most organisms consumeand are consumed bymore than one species. Q: A single, often oversimplified, path through which energy and matter flow through an ecosystem is also known as what? Choices: - the chain - fuel chain - life cycle - food chain A:

Ans:food chain
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Ques:Answer the following question given this paragraph: 33.3 Homeostasis Homeostasis is a dynamic equilibrium that is maintained in body tissues and organs. It is dynamic because it is constantly adjusting to the changes that the systems encounter. It is in equilibrium because body functions are kept within a normal range, with some fluctuations around a set point for the processes. Q: What is the term for a dynamic equilibrium that is maintained in body tissues and organs? Choices: - homogeneity - metabolism - dormancy - homeostasis A:

Ans:homeostasis
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Ques:Answer the following question given this paragraph: Many people have problems with their vision , or ability to see. Often, the problem is due to the shape of the eyes and how they focus light. Two of the most common vision problems are nearsightedness and farsightedness, which you can read about below. You may even have one of these vision problems yourself. Usually, the problems can be corrected with contact lenses or lenses in eyeglasses. In many people, they can also be corrected with laser surgery, which reshapes the outer layer of the eye. For a video about vision problems, go to this URL: http://www. youtube. com/watch?v=ekSGbXt4XdI. Q: What are the two most common vision problems? Choices: - colorblindness and farsightedness - glaucoma and nearsightedness - colorblindness and nearsightedness - nearsightedness and farsightedness A:

Ans:
nearsightedness and farsightedness
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