I think it's A) Protostar
Nitrogen- 78%
Oxygen- 21%
Argon- 0.93%
A species is a group of individual organisms that interbreed and produce fertile, viable offspring. According to this definition, one species is distinguished from another when, in nature, it is not possible for matings between individuals from each species to produce fertile offspring.
Answer:
Aminoacids are carried by transfer ARN to the site of protein synthesis.
Explanation:
Transfer ARN is a kind of ribonucleic acid that is responsible for the transport of aminoacids to tibosomes, where protein synthesis will take place.
Answer:
Explanation:
If you sleep on your back, a pillow that is too thick can strain the curvature of your spine and your neck muscles. If your pillow is too thin, side-sleeping can strain the muscles on the side of your neck