Answer the following question given this paragraph: The outer planets in the solar system are giant balls of swirling gas. Earth and the other inner planets are relatively small, dense, and rocky. Most of Earth's surface is covered with water. As far as we know, Earth is also the only planet that has liquid water. Earth's atmosphere has oxygen. The water and oxygen are crucial to life as we know it. Earth appears to be the only planet in the solar system with living creatures. You can learn more about the planets in the Our Solar System chapter. Q: What is most of earth's surface covered with? Choices: - insects - sand - silicon - water A:
water
Answer the following question given this paragraph: Osmosis Osmosis is the diffusion of water through a semipermeable membrane according to the concentration gradient of water across the membrane. Whereas diffusion transports material across membranes and within cells, osmosis transports only water across a membrane and the membrane limits the diffusion of solutes in the water. Osmosis is a special case of diffusion. Water, like other substances, moves from an area of higher concentration to one of lower concentration. Imagine a beaker with a semipermeable membrane, separating the two sides or halves (Figure 3.21). On both sides of the membrane, the water level is the same, but there are different concentrations on each side of a dissolved substance, or solute, that cannot cross the membrane. If the volume of the water is the same, but the concentrations of solute are different, then there are also different concentrations of water, the solvent, on either side of the membrane. Q: What is the diffusion of water through a semipermeable membrane according to the concentration gradient of water across the membrane Choices: - nutrients - mirrors - Gravity - osmosis A:
osmosis
Q: Answer the following question given this paragraph: Insects have a pair of antennae for "smelling" and "tasting" chemicals. Some insects can also use their antennae to detect sound. Other sensory organs on the head include several simple eyes and a pair of compound eyes. The compound eyes let insects see images. Butterflies and bees can even see in color. For feeding, the head contains one pair of mandibles and two pairs of maxillae . Insects consume a wide range of foods, and their mouthparts have become specialized. Several variations are shown in Figure below . Q: For feeding, the head contains one pair of mandibles and two pairs of what? Choices: - tracheae - antennae - chelicerae - maxillae A:
A: maxillae
Question: Answer the following question given this paragraph: Some mutations that lead to cancer may be inherited. However, most of the mutations are caused by environmental factors. Anything in the environment that can cause cancer is called a carcinogen. Common carcinogens include certain chemicals and some types of radiation. Q: A carcinogen is nything in the environment that can cause what disease? Choices: - glaucoma - alzheimers - diabetes - cancer A:
Answer: cancer
*Question*
Answer the following question given this paragraph: Lipids play several important roles in the body. Triglycerides are stored in fat cells until the body needs to break them down for chemical energy. These stored triglycerides also help insulate the body against extreme temperatures and cushion organs against physical jostling. Phospholipids and cholesterol are important constituents of the cell membrane. These compounds provide structural integrity to the cell wall, since they are not water-soluble. Other steroids are used as chemical messengers in the body, and the fat-soluble vitamins serve a variety of other functions. Q: What play several important roles in the human body? Choices: - cells - tissues - organs - lipids A:
**Answer**
lipids
*Question*
Answer the following question given this paragraph: Electron transport is the final stage of aerobic respiration. In this stage, energy from NADH and FADH 2 is transferred to ATP. Q: What is the final stage of aerobic respiration? Choices: - electron production - proton transport - glucose transport - electron transport A:
**Answer**
electron transport