Answer the following question given this paragraph: Carbon can form two different compounds with oxygen. Q: What element can form two different compounds with oxygen? Choices: - dioxide - H20 - hydrogen - carbon A:
carbon
(Question)
Answer the following question given this paragraph: Line graphs are especially useful for showing changes over time. The line graph in Figure below shows how distance from school changed over time when some students went on a class trip. Q: Line graphs are especially useful for showing changes over what? Choices: - space - energy - velocity - time A:
(Answer)
time
Ques: Answer the following question given this paragraph: Watch this video (http://openstaxcollege. org/l/vertebrate_evol) of biologist Mark Kirschner discussing the "flipping" phenomenon of vertebrate evolution. The nervous system is made up of neurons, specialized cells that can receive and transmit chemical or electrical signals, and glia, cells that provide support functions for the neurons by playing an information processing role that is complementary to neurons. A neuron can be compared to an electrical wireit transmits a signal from one place to another. Glia can be compared to the workers at the electric company who make sure wires go to the right places, maintain the wires, and take down wires that are broken. Although glia have been compared to workers, recent evidence suggests that also usurp some of the signaling functions of neurons. There is great diversity in the types of neurons and glia that are present in different parts of the nervous system. There are four major types of neurons, and they share several important cellular components. Q: The nervous system is made up of these? Choices: - fibers - blood cells - muscles - neurons A:
Ans: neurons
(Q).
Answer the following question given this paragraph: Scientists studied the distinctive pink color of the gas discharge created by hydrogen gas. When a narrow beam of this light was viewed through a prism, the light was separated into four lines of very specific wavelengths (and frequencies since and are inversely related). An atomic emission spectrum is the pattern of lines formed when light passes through a prism to separate it into the different frequencies of light it contains. The Figure below shows the atomic emission spectrum of hydrogen. Q: What do you call the pattern of lines formed when light passes through a prism to separate it into the different frequencies of light it contains? Choices: - prismatic rainbow - kaleidoscope effect - light emission spectrum - atomic emission spectrum A:
(A).
atomic emission spectrum
Ques:Answer the following question given this paragraph: 22.0.6 Phylogeny, Cladistics & Cladogram Modern taxonomy is based on many hypotheses' of the evolutionary history of organisms, known as phylogeny. As with the Scientific Method, scientists develop a hypothesis on the history of an animal and utilise modern science and technology to prove the phylogeny. Cladistics is a classification system which is based on phylogeny. Expanding on phylogeny, cladistics is based on the assumption that each group of related species has one common ancestor and would therefore retain some ancestral characteristics. Moreover, as these related species evolve and diverge from their common ancestor, they would develop unique characteristics. Such characteristics are known as derived characteristics The principles of phylogeny and cladistics can be expressed visually as a cladogram, a branching diagram which acts as a family (phylogenetic) tree for similar species. A cladogram can also be used to test alternative hypotheses for an animal's phylogeny. In order to determine the most likely cladogram, the derived characteristics of similar species are matched and analysed. Q: Modern taxonomy is based on many hypotheses' of the evolutionary history of organisms, known as this? Choices: - algorithm - cladistic - pathogeny - phylogeny A:

Ans:phylogeny
Ques: Answer the following question given this paragraph: The reaction of an alkyl halide with an inorganic hydroxide base at elevated temperature produces an alcohol. The molecular reaction to produce methanol from iodomethane and sodium hydroxide is shown below. Q: The reaction of an alkyl halide with an inorganic hydroxide base at elevated temperature produces what? Choices: - blood - methane - yeast - an alcohol A:
Ans:
an alcohol