Answer the following question given this paragraph: Understand current as it passes through a series circuit. Q: What device is used to stop a current in a circuit? Choices: - a signal - a valve - a mirror - a switch A:
a switch
(Question)
Answer the following question given this paragraph: Chromatography involves solvent separation on a solid medium. Q: Which process involves solvent separation on a solid medium? Choices: - substration - resonance - affinity - chromatography A:
(Answer)
chromatography
Ques: Answer the following question given this paragraph: The biological electron transport chain provides for an orderly, stepwise transfer of electrons. Both NADH (reduced nicotinamide adenine dinucleotide) and FADH2 (reduced flavin adenine dinucleotide) are energyrich molecules that liberate a large amount of energy during oxidation. Free energy released during the transfer of electrons from either of these molecules to oxygen drives the synthesis of ATP (adenosine triphosphate) formed during respiratory metabolism. The reactions are as follows:. Q: The biological electron transport chain provides for an orderly, stepwise transfer of electrons. both nadh (reduced nicotinamide adenine dinucleotide) and fadh2 (reduced flavin adenine dinucleotide) are energy rich molecules that liberate a large amount of energy during what? Choices: - extrapolation - conduction - evaporation - oxidation A:
Ans: oxidation
(Q).
Answer the following question given this paragraph: The vertebral column is the core of the vertebrate endoskeleton, or internal skeleton. You can see a human skeleton as an example of the vertebrate endoskeleton in Figure below . In addition to the vertebral column, the vertebrate endoskeleton includes:. Q: The vertebrate endoskeleton can also be called what? Choices: - structural skeleton - exoskeleton - deep skeleton - internal skeleton A:
(A).
internal skeleton
Ques:Answer the following question given this paragraph: Gene transcription is controlled by regulatory proteins that bind to regulatory elements on DNA. The proteins usually either activate or repress transcription. Q: What is controlled by regulatory proteins that bind to regulatory elements on dna? Choices: - amino acids - mRNA - substance transcription - gene transcription A:

Ans:gene transcription
Ques: Answer the following question given this paragraph: Figure 6.31 (a) The radius of an atom is defined as one-half the distance between the nuclei in a molecule consisting of two identical atoms joined by a covalent bond. The atomic radius for the halogens increases down the group as n increases. (b) Covalent radii of the elements are shown to scale. The general trend is that radii increase down a group and decrease across a period. Q: The radius of an atom is defined as one-half the distance between the nuclei in a molecule consisting of two identical atoms joined by what? Choices: - metallic bond - ionic bond - hydrogen bond - covalent bond A:
Ans:
covalent bond