Answer the following question given this paragraph: Some mutations have a positive effect on the organism in which they occur. They are called beneficial mutations . They lead to new versions of proteins that help organisms adapt to changes in their environment. Beneficial mutations are essential for evolution to occur. They increase an organism's changes of surviving or reproducing, so they are likely to become more common over time. There are several well-known examples of beneficial mutations. Here are just two:. Q: Mutations which benefit the organism in which they occur are known as? Choices: - extraordinary mutations - helpful mutations - healthy mutations - beneficial mutations A:
beneficial mutations
Answer the following question given this paragraph: Quaternary structure is a larger assembly of several polypeptide chains, now referred to as subunits of the protein. The quaternary structure is stabilized by the same interactions as the tertiary structure. Complexes of two or more polypeptides are called multimers. Specifically, a dimer contains two subunits, a trimer contains three subunits, and a tetramer contains four subunits. Q: What structure is a larger assembly of several polypeptide chains that are now referred to as subunits of the protein? Choices: - digital structure - geological structure - pyramid structure - quaternary structure A:
quaternary structure
Q: Answer the following question given this paragraph: Very small numbers can also be expressed using scientific notation. The mass of an electron in decimal notation is 0.000000000000000000000000000911 grams. In scientific notation, the mass is expressed as 9.11 10 -28 g. Notice that the value of the exponent is chosen so that the coefficient is between 1 and 10. Q: What system can be used by scientists to express very small numbers? Choices: - similar notation - scientific diffusion - certain diffusion - scientific notation A:
A: scientific notation
Question: Answer the following question given this paragraph: Carbohydrates are the most common type of organic compound. A carbohydrate is an organic compound such as sugar or starch, and is used to store energy. Like most organic compounds, carbohydrates are built of small, repeating units that form bonds with each other to make a larger molecule. In the case of carbohydrates, the small repeating units are called monosaccharides. Q: What is the most common type of organic compound? Choices: - lipids - hydrocarbons - proteins - carbohydrates A:
Answer: carbohydrates
*Question*
Answer the following question given this paragraph: Q: Larger animals expend more of what to achieve locomotion? Choices: - neurons - distance - time - energy A:
**Answer**
energy
Q: Answer the following question given this paragraph: Organs may be organized into organ systems. An organ system is a group of organs that work together to do the same job. For example, the heart is part of the cardiovascular system. This system also includes blood vessels and blood. The job of the cardiovascular system is to transport substances in blood to and from cells throughout the body. Q: What is a group of organs that work together to do the same job? Choices: - an organ colony - an organ assembly - an organ battery - an organ system A:
A: an organ system