Answer the following question given this paragraph: A scientist is always trying to find the truth and discover new truths. How can you think like a scientist? Thinking like a scientist is based on asking and answering questions. Though you may not know it, you do this all day long. Scientists ask questions, and then make detailed observations to try to ask more specific questions and develop a hypothesis . They may design and perform an experiment to try to answer their question and test their hypothesis. From the results of their experiment, scientists draw conclusions . A conclusion describes what the evidence tells the scientist. Q: Scientists ask questions, and then make detailed observations to try to ask more specific questions, in order to develop what? Choices: - Tests - suggests - theories - hypothesis A:
hypothesis
(Question)
Answer the following question given this paragraph: Q: Where a cell resides, how it appears, and what it does define its what? Choices: - minute race - slowing rate - life cycle - development fate A:
(Answer)
development fate
Ques: Answer the following question given this paragraph: The alveoli in the lungs are where gas exchange between the air and blood takes place. Each alveolus is surrounded by a network of capillaries. When you inhale, air in the alveoli has a greater concentration of oxygen than does blood in the capillaries. The difference in oxygen concentration causes oxygen to diffuse from the air into the blood. You can see how this occurs in Figure below . Q: Where in the lungs does gas exchange between the air and blood takes place? Choices: - ganglion - left lobe - bronchial tube - alveoli A:
Ans: alveoli
(Q).
Answer the following question given this paragraph: Beneath the lithosphere, the asthenosphere is solid rock that can flow. Q: What is located beneath the lithosphere? Choices: - hydropshere - troposphere - magnetosphere - asthenosphere A:
(A).
asthenosphere
Ques:Answer the following question given this paragraph: The population growth rate is how quickly a population changes in size over time. The rate of growth of a population may be positive or negative. A positive growth rate means that the population is increasing in size because more people are being added than lost. A negative growth rate means that the population is decreasing in size because more people are being lost than added. Q: How quickly a population changes in size over time is known as what? Choices: - population impact rate - population multiplication rate - population direction rate - population growth rate A:

Ans:population growth rate
Question: Answer the following question given this paragraph: Acids and bases are important in living things because most enzymes can do their job only at a certain level of acidity. Cells secrete acids and bases to maintain the proper pH for enzymes to work. For example, every time you digest food, acids and bases are at work in your digestive system. Consider the acidic environment of the stomach. The acidic environment helps with the digestion of food. The enzyme pepsin, which helps break down proteins in the stomach can only function optimally in the low pH environment. The stomach secretes a strong acid that allows pepsin to work, and the stomach to do its job. However, when stomach contents enter the small intestine, the acid must be neutralized. This is because enzymes in the small intestine need a basic environment in order to work. An organ called the pancreas secretes a strong base into the small intestine, and this base neutralizes the acid. Q: Acids and bases are important in living things because what proteins typically can perform their job only at a certain level of acidity? Choices: - hormones - vitamins - catalysts - enzymes A:
Answer:
enzymes