Answer the following question given this paragraph: The vascular tissues for which these plants are named are specialized to transport fluid. They consist of long, narrow cells arranged end-to-end, forming tubes. There are two different types of vascular tissues, called xylem and phloem. Both are shown in Figure below . Q: What are the two different types of vascular tissues called? Choices: - acid and base - biotic and abiotic - epidermis and dermis - xylem and phloem A:
xylem and phloem
Answer the following question given this paragraph: Any magnet has two ends called poles where the magnetic effect is strongest. Q: What do you call the two ends of a magnet where the magnetic effect is strongest? Choices: - plates - magnetos - opposites - poles A:
poles
Q: Answer the following question given this paragraph: This inverse relationship between solubility and temperature can be understood by looking at a molecular model. Recall that higher temperatures are associated with faster particles. Gas particles are held in solution by attractive interactions with the solvent molecules. If the particles are moving slowly, these attractive forces will pull back any particles that try to escape the surface of the solution and re-enter the gas phase. However, if the gas particles are moving fast enough, these interactions will not be sufficiently strong to prevent this process from occurring. As a result, more particles are able to escape, and the amount of dissolved solute is less than it would be at a lower temperature. Q: This inverse relationship between solubility and temperature can be understood by looking at a what? Choices: - nutrient model - a slide - potassium model - molecular model A:
A: molecular model
Question: Answer the following question given this paragraph: Total internal reflection occurs when light goes from a slow (high index of refraction) medium to a fast (low index of refraction) medium. With total internal reflection, light refracts so much it actually refracts back into the first medium. This is how fiber optic cables work: no light leaves the wire. Q: When does internal reflection occur? Choices: - when light goes from a slow medium to another slow medium - when light goes from a fast medium to a slow - when light goes from a fast medium to another fast medium - when light goes from a slow medium to a fast A:
Answer: when light goes from a slow medium to a fast
*Question*
Answer the following question given this paragraph: The transfer of electrons from the van de Graaff generator to the man is an example of conduction. Conduction occurs when there is direct contact between materials that differ in their ability to give up or accept electrons. A van de Graff generator produces a negative charge on its dome, so it tends to give up electrons. Human hands are positively charged, so they tend to accept electrons. Therefore, electrons flow from the dome to the man's hand when they are in contact. Q: A van de graff generator produces what type of charge on its dome, causing the tendency to give up electrons? Choices: - positive charge - similar charge - no charge - negative charge A:
**Answer**
negative charge
Answer the following question given this paragraph: It might only take one sperm to fertilize an egg, but that sperm is not alone. Hundreds of millions of sperm can be released during sexual intercourse. Q: How many sperm does it take to fertilize an egg? Choices: - 3 - 2 - 4 - 1 A:
1