Answer the following question given this paragraph: The only light that people can see is called visible light . This light consists of a very narrow range of wavelengths that falls between infrared light and ultraviolet light. Within the visible range, we see light of different wavelengths as different colors of light, from red light, which has the longest wavelength, to violet light, which has the shortest wavelength (see Figure below ). When all of the wavelengths of visible light are combined, as they are in sunlight, visible light appears white. You can learn more about visible light at this URL: http://www. youtube. com/watch?v=PMtC34pzKGc . Q: What do we call the only light that people can see? Choices: - wave light - spectral light - natural light - visible light A:
visible light
(Question)
Answer the following question given this paragraph: Q: Wind is one method for dispersal of what, ensuring a new generation? Choices: - dust - clouds - eggs - seeds A:
(Answer)
seeds
Ques: Answer the following question given this paragraph: Vascular plants are further divided into seedless and seed plants. Q: What are the two types of vascular plants? Choices: - dahlias and seed - Water and spore - ants and seed - seedless and seed A:
Ans: seedless and seed
(Q).
Answer the following question given this paragraph: An acid-base indicator is a substance that displays different colors when in the presence of an acid or a base. How does that work? An indicator is a weak acid that ionizes within a known pH range, usually about 2 pH units. We can represent the protonated form of the indicator molecule as HIn and the deprotonated form as In . The following equilibrium exists for the indicator. Q: A substance that displays different colors when in the presence of an acid or a base is called what? Choices: - pH scale - reactor - litmus test - an acid-base indicator A:
(A).
an acid-base indicator
Ques:Answer the following question given this paragraph: If no unbalanced force acts on an object the object remains at constant velocity or at rest. Q: If no unbalanced force acts on an object the object remains at constant velocity or what? Choices: - rotating - constant - constant movement - at rest A:

Ans:at rest
Answer the following question given this paragraph: Unless an animal cell (such as the red blood cell in the top panel) has an adaptation that allows it to alter the osmotic uptake of water, it will lose too much water and shrivel up in a hypertonic environment. If placed in a hypotonic solution, water molecules will enter the cell, causing it to swell and burst. Plant cells (bottom panel) become plasmolyzed in a hypertonic solution, but tend to do best in a hypotonic environment. Water is stored in the central vacuole of the plant cell. Q: What kind of solution might cause animal cells to burst? Choices: - Acid Solution - monatomic - eutrophic - hypotonic A:
hypotonic