Absolute Dating. The nuclear decay of radioactive isotopes is a process that behaves in a clock-like fashion and is thus a useful took for determining the absolute age of rocks. Radioactive decay is the process by which a "parent" isotope changes into a "Daughter" isotope.
It uses the urinary tract as a "plumbing system" to drain urine from the kidneys
Answer: The endocrine system sends chemicals called hormones through the bloodstream to change short-term and long-term activities in the body
Explanation: Endocrine system is a system made up of glands that produce and secrete chemical signal called hormones which travel through the bloodstream to the target cell where they exert their effects.
A hormone is a chemical messenger secreted by an endocrine gland. Long-term activities in the body influenced by hormones include growth and development.
Answer:
Catabolysis
Explanation:
Catabolysis is the last metabolic resort for the body to keep itself — particularly the nervous system—functional. Protein stores, especially in muscle tissue, provide the amino acids needed for the process.
A large class of molecules is called a macromolecule.
