Answer the following question given this paragraph: As you can see from Figure above , a mitochondrion has an inner and outer membrane. The space between the inner and outer membrane is called the intermembrane space. The space enclosed by the inner membrane is called the matrix. The second stage of cellular respiration, the Krebs cycle, takes place in the matrix. The third stage, electron transport, takes place on the inner membrane. Q: What do mitochondrions have an inner and outer version of? Choices: - protein - Molecule - Fatty Acids - membrane A:
membrane
(Question)
Answer the following question given this paragraph: The structures of the human eye collect and focus light. They form a reduced, upside-down image on the retina at the back of the eye. Q: What do structures of the human eye collect and focus? Choices: - sugars - air - electricity - light A:
(Answer)
light
Ques: Answer the following question given this paragraph: The atmosphere is a big part of the water cycle. What do you think would happen to Earth's water without it?. Q: What is the upper-most atmosphere known as? Choices: - xerosphere - exosphere - ionosphere - thermosphere A:
Ans: thermosphere
(Q).
Answer the following question given this paragraph: 25.1 The Ray Aspect of Light There are three ways in which light can travel from a source to another location. (See Figure 25.3. ) It can come directly from the source through empty space, such as from the Sun to Earth. Or light can travel through various media, such as air and glass, to the person. Light can also arrive after being reflected, such as by a mirror. In all of these cases, light is modeled as traveling in straight lines called rays. Light may change direction when it encounters objects (such as a mirror) or in passing from one material to another (such as in passing from air to glass), but it then continues in a straight line or as a ray. The word ray comes from mathematics and here means a straight line that originates at some point. It is acceptable to visualize light rays as laser rays (or even science fiction depictions of ray guns). Ray The word "ray" comes from mathematics and here means a straight line that originates at some point. Q: Regardless of the mode, light is modeled as traveling in straight lines called what? Choices: - waves - arrows - electrons - rays A:
(A).
rays
Ques:Answer the following question given this paragraph: Freshwater biomes are defined by their low salt concentration, usually less than 1%. Plants and animals in freshwater regions are adjusted to the low salt content and would not be able to survive in areas of high salt concentration, such as the ocean. There are different types of freshwater biomes: ponds and lakes ( Figure below ), streams and rivers, and wetlands. Ponds and lakes range in size from just a few square meters to thousands of square kilometers. Streams and rivers are bodies of flowing water moving in one direction. They can be found everywhere. They get their starts at headwaters , which may be springs, melting snow, or even lakes, and then travel all the way to their mouths , emptying into another water channel or the ocean. Wetlands are areas of standing water that support aquatic plants. Wetlands include marshes, swamps, and bogs. Q: What are fresh water biomes defined by? Choices: - high salt content - moving water - animal species - low salt concentration A:

Ans:low salt concentration
Question: Answer the following question given this paragraph: The average annual temperature on Earth has been rising for the past 100 years. Q: Has the average annual temperature on earth been rising or falling for the past 100 years? Choices: - unchanged - fluctuating - falling - rising A:
Answer:
rising