Ques: Q: What is the lowest level of organization that can perform all activities required for life? Read this paragraph and choose the correct option from the provided answers: Choices: - organs - nucleii - tissues - the cell A:
Ans: the cell

Ques: Q: What does the geiger counter detect? Read this paragraph and choose the correct option from the provided answers: You generally can't see, smell, taste, hear, or feel radiation. Fortunately, there are devices such as Geiger counters that can detect radiation. A Geiger counter, like the one pictured in the Figure below , contains atoms of a gas that is ionized if it encounters radiation. When this happens, the gas atoms change to ions that can carry an electric current. The current causes the Geiger counter to click. The faster the clicks occur, the higher the level of radiation. You can see a video about the Geiger counter and how it was invented at the URL below. Choices: - vibration - convection - moisture - radiation A:
Ans: radiation

Ques: Q: What makes up 99 percent of air? Read this paragraph and choose the correct option from the provided answers: Figure below shows the main gases in air. Nitrogen and oxygen make up 99 percent of air. Argon and carbon dioxide make up much of the rest. These percentages are the same just about everywhere in the atmosphere. Choices: - oxygen and dioxide - phosphorus and oxygen - dioxide and nitrogen - nitrogen and oxygen A:
Ans: nitrogen and oxygen

Ques: Q: What are accessory digestive organs critical for breaking down? Read this paragraph and choose the correct option from the provided answers: Digestive System Organs The easiest way to understand the digestive system is to divide its organs into two main categories. The first group is the organs that make up the alimentary canal. Accessory digestive organs comprise the second group and are critical for orchestrating the breakdown of food and the assimilation of its nutrients into the body. Accessory digestive organs, despite their name, are critical to the function of the digestive system. Choices: - pathogens - enzymes - hormones - food A:
Ans:
food