Carbon 14 has a half life of 5,730 years. Scientists measure how much carbon 14 the rock has. For objects older than 50,000 years, scientists will test the age of the things surrounding it.
Carbon dioxide. the plants take the carbon dioxide and make oxygen
Answer:
It's true that anabolic steroids used by some bodybuilders and athletes contain testosterone or chemicals that act like testosterone. The difference is that doses used in testosterone replacement only achieve physiologic (natural) levels of hormone in the blood.
Explanation:
It's true that anabolic steroids used by some bodybuilders and athletes contain testosterone or chemicals that act like testosterone. The difference is that doses used in testosterone replacement only achieve physiologic (natural) levels of hormone in the blood.
<span>This is speciation. In this process, two distinct species are formed through the intervention of some means such as differing environments or locations. This is done typically as a way of staying evolutionarily competitive in the area in which the species resides. The new species would be the exemplar of that which is best suited to the new conditions.</span>
