The answer you chose is right
The condition is which characteristics of atmosphere III is nitrogen-rich and oxygen-poor. Nitrogen-rich is one of the condition in which the atmosphere III characterizes. The other is oxygen-poor, is one of the condition characterizes atmosphere III. Nitrogen-rich material mostly called green because they are greenish in color. Oxygen-poor means the blood enters the RA or Right atrium or the upper chamber of the heart.
A codon is a sequence of three bases found on the messenger RNA (mRNA) molecule which is translated to produce an amino acid. Each amino acid is coded by one or more specific codons. If the codon is changed through a mutation, the amino acid produced may be different. However, in this case, the other codons that produce Leucine are:
UUA, UUG, CUU, CUC, CUA and CUG
So the code CUU could mutate to CUC, CUA or CUG and leucine would still be produced.
they are employing B. vestibule training
The best answer is d. endometrium.
Endometrium is the innermost layer in the Uterus, and it is found in the whole uterus.
For comparison, Cervix is the structure on the "bottom" of the uterus, vagina is below it (outside of the womb) and the ovaries if where the unfertilized eggs are.