*Question*
Q: What are composed of an oxygen atom that forms single bonds with two carbon atoms? Read this paragraph and choose the correct option from the provided answers: Ethers are composed of an oxygen atom that forms single bonds with two carbon atoms. Ethers are relatively unreactive making them good solvents for other organic compounds, such as in the formation of anesthetics. Choices: - sugars - solvents - acids - ethers A:
**Answer**
ethers

*Question*
Q: What is a trait whose allele is found on a sex chromosome called? Read this paragraph and choose the correct option from the provided answers: A sex-linked trait is a trait whose allele is found on a sex chromosome. The human X chromosome is significantly larger than the Y chromosome; there are many more genes located on the X chromosome than there are on the Y chromosome. As a result there are many more X-linked traits than there are Y-linked traits. Most sex-linked traits are recessive. Because males carry only one X chromosome, if they inherit a recessive sex-linked gene they will show a sex-linked condition; there is no dominant allele to offset the recessive allele. Choices: - dimorphism - linked trait - gender trait - genomic trait - sex-linked trait A:
**Answer**
sex-linked trait

*Question*
Q: Higher pressures increase the solubility of what? Read this paragraph and choose the correct option from the provided answers: Higher pressures increase the solubility of gases. You are probably familiar with this concept as it relates to carbonated beverages. Before opening the container, the inside is pressurized, so a large amount of CO 2 is dissolved in the liquid. After opening, the pressure decreases (to the ambient pressure), so the solubility of CO 2 drops, causing it to bubble out of solution. Because they are not compressible like gases, solid and liquid solutes do not have noticeable changes in solubility at different external pressures. Choices: - molecules - fuels - bases - gases A:
**Answer**
gases

*Question*
Q: What classification system was developed by a swedish botanist trying to classify all known living things? Read this paragraph and choose the correct option from the provided answers: All modern classification systems have their roots in the Linnaean classification system. It was developed by Swedish botanist Carolus Linnaeus in the 1700s. He tried to classify all living things that were known at his time. He grouped together organisms that shared obvious physical traits, such as number of legs or shape of leaves. For his contribution, Linnaeus is known as the "father of taxonomy. " You can learn more about Linnaeus and his system of classification by watching the video at this link: http://teachertube. com/viewVideo. php?video_id=169889 . Choices: - taxonomical system - plantological system - bionumerical system - linnaean system A:
**Answer**
linnaean system