The best and most correct answer among the choices provided by your question is the third choice.
Atrophy occurs when a muscle becomes weaker and smaller from not being used
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Allele, gene, chromosome and then nucleus
Options are not provided in the question. Thus, all possible answers are included in the answer.
Transcription bubble is formed during the process of transcription of DNA where a small portion which is to be transcribed is unwound. After this, RNA polymerase binds to the single stranded DNA and RNA strand is synthesized.
It is a molecular structure which is formed only during transcription.
Surface tension is caused by the attraction of the particles in the surface layer by the bulk of the liquid.
Answer:
The answer is D.
Explanation:
It occurs continuously in the cells of all organisms and often involves an exchange of gases. There are 2 types of cells, 1 is Eukaryotic, which holds a nucleus, and the 2nd is Prokaryotic, which do not. Prokaryotes are single-celled organisms.