Answer the following question given this paragraph: Generators and motors are almost identical in construction but convert energy in opposite directions. Generators convert mechanical energy to electrical energy and motors convert electrical energy to mechanical. Q: Generators convert mechanical energy to which kind? Choices: - kinetic - radiation - static - electrical A:
electrical
(Question)
Answer the following question given this paragraph: Fish also have a centralized nervous system with a brain. Fish brains are small compared with the brains of other vertebrates, but they are large and complex compared with the brains of invertebrates. Fish also have highly developed sense organs that allow them to see, hear, feel, smell, and taste. Sharks and some other fish can even sense the very low levels of electricity emitted by other animals. This helps them locate prey. Q: Why do sharks sense low levels of electricity? Choices: - to locate mates - to sleep - to reproduce - to locate prey A:
(Answer)
to locate prey
Ques: Answer the following question given this paragraph: A secondary alcohol forms a ketone when oxidized. The secondary alcohol cannot be further oxidized to produce a carboxylic acid. Tertiary alcohols cannot be oxidized in this way, because the carbon atom bonded to the OH group is not also bonded to any hydrogens. Q: What forms a ketone when oxidized? Choices: - enzyme - aldehyde - carbolic acid - secondary alcohol A:
Ans: secondary alcohol
(Q).
Answer the following question given this paragraph: Q: What term is used to describe phages capable of using both modes of replicating within a bacterium? Choices: - moderate phages - bacteriophage - lambda phage - temperate phages A:
(A).
temperate phages
Ques:Answer the following question given this paragraph: Figure 18.19 The shape of the male reproductive organ varies among male damselfly species, and is only compatible with the female of that species. Reproductive organ incompatibility keeps the species reproductively isolated. Q: What keeps various species from mating and reproducing outside their own species? Choices: - digestive system incompatibility - brain organ incompatibility - cancer organ incompatibility - reproductive organ incompatibility A:

Ans:reproductive organ incompatibility
Question: Answer the following question given this paragraph: Coevolution often happens in species that have symbiotic relationships. Examples include flowering plants and their pollinators. Q: What type of evolution often happens in species that have symbiotic relationships? Choices: - retrogression - succession - spontaneous evolution - coevolution A:
Answer:
coevolution