Answer the following question given this paragraph: Q: What "plumbing" structures inside the veins maintain a unidirectional flow of blood despite the low blood pressure? Choices: - funnels - tubes - pumps - valves A:
valves
(Question)
Answer the following question given this paragraph: Phototrophic organisms capture light energy from the sun and convert it into chemical energy inside their cells. Q: Phototrophic organisms capture light energy from the sun and convert it into what type of energy inside their cells? Choices: - solar power - mechanical energy - radiation energy - chemical energy A:
(Answer)
chemical energy
Ques: Answer the following question given this paragraph: At the end of the Precambrian, a mass extinction occurred. In a mass extinction , the majority of species die out. The Precambrian mass extinction was the first of six mass extinctions that occurred on Earth. It's not certain what caused this first mass extinction. Changes in Earth's geology and climate were no doubt involved. Q: What was the first mass extinction that occurred on earth? Choices: - late Devonian mass extinction - paleozoic mass extinction - proterozoic mass extinction - precambrian mass extinction A:
Ans: precambrian mass extinction
(Q).
Answer the following question given this paragraph: Standardized measurements make it possible for people everywhere to get the same amount of something. Note the red and white labels on the gas pump above. These labels certify that the gas pump has been checked and is pumping an accurate gallon of gas. Standard measurements in science are very important so that we can compare experimental data from one lab to another and make sure we all are talking about the same thing. Q: What in science are very important so that we can compare experimental data from one lab to another and make sure we all are talking about the same thing? Choices: - Conventional measurements - available measurements - uses measurements - standard measurements A:
(A).
standard measurements
Ques:Answer the following question given this paragraph: Q: Untreated botulism is typically fatal because muscles required for breathing fail to contract when the release of what chemical is blocked? Choices: - carbon dioxide - monoxide - hydrogen - acetylcholine A:

Ans:acetylcholine
Answer the following question given this paragraph: Inductive reasoning is the process of drawing general conclusions based on many pieces of evidence. This type of reasoning is the basis of the scientific method. Q: What is the process of drawing general conclusions based on many pieces of evidence? Choices: - quantum reasoning - primitive reasoning - experimental reasoning - inductive reasoning A:
inductive reasoning