Answer: A,B, and C.) Only somatic mutations are important to evolution because they can be inherited. Acquired mutations are passed down from parent to offspring. Hereditary mutations are caused by external factors, such as radiation.
Explanation:
Environmental Protection Agency (EPA) uses clean up authorities independently to address clean up situation:
-Under Superfund, or CERCLA, they find companies or the people responsible for contamination and negotiates with them to clean up the site.
-<span>Resource Conservation and Recovery Act (RCRA) provides EPA with enforcements authorities to ensure the sites are clean up.</span>
Answer:
Approximately 4.6 billion years ago, the solar system was a cloud of dust and gas known as a solar nebula. Gravity collapsed the material in on itself as it began to spin, forming the sun in the center of the nebula. With the rise of the sun, the remaining material began to clump up.
Explanation:
The basic repeating unit of nucleic acids are known as nucleotides. A nucleotide consists of three distinct chemical groups, a 5-carbon sugar (ribose or deoxyribose), a nitrogen-rich base - (cytosine (C), guanine (G), adenine (A), thymine (T) in DNA or uracil (U) instead of T (in RNA), and phosphate.