The formation of protobionts that use DNA to direct the polymerization of amino acids have not yet been researched by scientist in order to learn about the origins of life on Earth
Answer: Looks similar to a smoky quartz.
The answer to your question is,
carry satellites into orbit
-Mabel <3
<em>Radioactive tracers are useful in </em><em><u>determining medical problems.</u></em>
Answer: <em>B. Determining medical problems.</em>
Explanation:
Radioactive tracers are comprised of carrier particles that are reinforced firmly to a radioactive atom. These bearer particles shift incredibly relying upon the motivation behind the scan.
A few tracers utilize atoms that associate with a particular protein or sugar in the body and can even utilize the patient's very own cells.
Examples of radioactive tracer are - tritium, carbon-11, carbon-14 and oxygen-15 and so forth. Radioactive tracers are either injected in the body intravenously or orally.
