Answer:
The nervous system is stimulated from the environment, through sensory receptors. A stimulus is any form of energy that can be detected by the body. ... Animals normally only respond to stimuli which they select; they filter out certain stimuli that surround them, and react to others they choose to accept.
The correct answer is uracil.
<span>Uracil is one of the pyrimidine nucleotide bases which is the component of nucleic acid-RNA. In RNA, uracil binds to adenine via two hydrogen bonds (complementary binding). Uracil is not found in DNA, it is replaced by thymine because it is thymine’s demethylated form.</span>
Rain forest contains more species
The answer is; A
There is no such RNA as endoplasmic RNA. After transcription, the mRNA form an initiation complex with ribosomes and tRNA. The tRNA brings in amino acids based on the sequence of codons on the mRNA. The amino acids are bonded together in chains to form a polypeptide.
