Answer:
A quarter of the sample.
Explanation:
Let the quantity at the beginning be T. If the element has a half-life of 1,000 years, it means that after 1000 years, T/2 (which represents half the initial quantity available) would have decayed, remaining T/2.
After another 1000 years (making 2000 years), T/4 (which represents have of the quantity left after the first 1000 years) would have decayed, remaining T/4.
This means that only a quarter of T would be left after 2000 years.
Carbohydrate!!! That is glucose.
Transfer of RNA becomes charged in activation. charged tRNA occurs when<span> amino acid is attached. Reads the codon of mRNA during translation.</span>
The answer is B <span>that bony fish evolved before land plants </span>
