D. The EPA, or environmental protection agency
Unicellular hope this helps
Answer:
The correct answer is "17,100 years".
Explanation:
Carbon-14 is a radioactive isotope of carbon that is normally present in all living organisms and due to its low content and slow pace of degradation it is widely used for dating purposes. The half-life of Carbon-14 is approximately 5,700 years, therefore, a wood that had gone through 3 half-lives of Carbon-14 will be approximately 17,100 years old. This calculation is made simply by multiplying three times the half-life of Carbon-14.
Answer:
Fats are the primary long-term energy storage molecules of the body. Fats are very compact and light weight, so they are an efficient way to store excess energy. A fat is made up of a glycerol, which is attached to 1 to 3 fatty acid chains.
Explanation:
Answer:
Contract
Explanation:
The main proteins involved in muscle contraction are called actin and myosin.