The graph that best shows the general relationship between the temperature of a gas and the speed of the molecules in that gas is B.
<h3>What is kinetic energy?</h3>
Kinetic energy is the energy that an object or particle has as a result of its motion. When work transferring energy, is done on an object by applying a net force, the object accelerates and goes under kinetic energy.
The missing graphs are attached as image.
The average kinetic energy of gas molecules is

K∝T
So as per above equation, K-T graph is a straight line having a finite slope and passing through the origin.
Thus, option B is correct.
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Answer: The correct option for the fill in the blank is B) Transcript, ribosome.
mRNA is formed by a template of DNA in the nucleus of eukaryotic cells. The genetic information from DNA is transferred to mRNA in process called Transcription. mRNA is transported outside nucleus and helps in protein synthesis at the site called ribosomes.
mRNA thus carries a transcript of DNA instruction out of the nucleus. It helps in the formation of synthesis at ribososme ( present in the cytoplasm of the cell).
Thus, option B) is the right answer.
A mutation is a change in DNA, the hereditary material of life. An organism's DNA affects how it looks, how it behaves, and its physiology.