It’s true (a) because bones become brittle and easier to break if theyre not used. bones more frequently used become stronger.
We have 20 different amino acids in our bodies.
Answer:
A
Explanation:
A because the introns are edited then linked together by nucleotides
The first person to be interviewed should be the victim
The first serious attack on the idea of spontaneous generation<span> was made in 1668 by Francesco Redi, an Italian physician and poet. At that time, it was widely held that maggots arose </span>spontaneously<span> in rotting meat. Redi believed that maggots developed from eggs laid by flies.</span>