Answer the following question given this paragraph: Pressure has very little effect on the solubility of solids or liquids, but has a significant effect on the solubility of gases. Gas solubility increases as the partial pressure of a gas above the liquid increases. Suppose a certain volume of water is in a closed container with the space above it occupied by carbon dioxide gas at standard pressure. Some of the CO 2 molecules come into contact with the surface of the water and dissolve into the liquid. Now suppose that more CO 2 is added to the space above the container, causing a pressure increase. More CO 2 molecules are now in contact with the water and so more of them dissolve. Thus the solubility increases as the pressure increases. As with a solid, the CO 2 that is undissolved reaches an equilibrium with the dissolved CO 2 , represented by the following equation. Q: Pressure has a significant effect on the solubility of what state of matter? Choices: - mixtures - solids - water - gases A:
gases
Answer the following question given this paragraph: may be located in organs or tissues that have functions in addition to hormone production. Hormones circulate throughout the body and stimulate a response in cells that have receptors able to bind with them. The changes brought about in the receiving cells affect the functioning of the organ system to which they belong. Many of the hormones are secreted in response to signals from the nervous system, thus the two systems act in concert to effect changes in the body. Q: Many of the hormones are secreted in response to what signals of the body? Choices: - nose system signals - skeletal system signals - heart system signals - nervous system signals A:
nervous system signals
Q: Answer the following question given this paragraph: Bacteria are responsible for many types of diseases in humans. Q: Bacteria are responsible for many types of what in humans? Choices: - colors - smells - food - diseases A:
A: diseases
Question: Answer the following question given this paragraph: 26.3 Angiosperms Angiosperms are the dominant form of plant life in most terrestrial ecosystems, comprising about 90 percent of all plant species. Most crops and ornamental plants are angiosperms. Their success comes from two innovative structures that protect reproduction from variability in the environment: the flower and the fruit. Flowers were derived from modified leaves. The main parts of a flower are the sepals and petals, which protect the reproductive parts: the stamens and the carpels. The stamens produce the male gametes in pollen grains. The carpels contain the female gametes (the eggs inside. Q: What is the dominant form of plant life in most terrestrial ecosystems, comprising about 90 percent of all plant species? Choices: - pteridophytes - gymnosperms - bryophytes - angiosperms A:
Answer: angiosperms
*Question*
Answer the following question given this paragraph: The thick, rigid trunk of the oak tree on the left might crack and break in a strong wind. The slim, flexible trunk of the willow tree on the right might bend without breaking. In one way, metals are like willow trees. They can bend without breaking. That's because metals form special bonds called metallic bonds. Q: Metallic bonds allow metals to do what, in the manner of a willow tree? Choices: - break easily - stand tall - grow - bend without breaking A:
**Answer**
bend without breaking
Q: Answer the following question given this paragraph: All living things consist of one or more cells. Cells are the basic units of structure and function of living organisms. Q: What are the basic units of structure and function in living organisms? Choices: - proteins - molecules - lipids - cells A:
A: cells