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Stells [14]
2 years ago
14

Signals from the ___ system cause contractions in skeletal muscles. A. Respiratory B. Endocrine. C. Nervous. D. Digestive

Biology
1 answer:
Andru [333]2 years ago
3 0
Answer: C) Nervous Sytem
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What is a stop codon​
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Answer:

In the genetic code, a stop codon (or termination codon) is a nucleotide triplet within messenger RNA that signals a termination of translation into protein

Explanation:

Proteins are based on polypeptides, which are unique sequences of amino acids. Most codons in messenger RNA (from DNA) correspond to the addition of an amino acid to a growing polypeptide chain, which may ultimately become a protein. Stop codons signal the termination of this process by binding release factors, which cause the ribosomal subunits to disassociate, releasing the amino acid chain. While start codons need nearby sequences or initiation factors to start translation, a stop codon alone is sufficient to initiate termination.

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All living things

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Climate affects everything

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is Earth an open system or closed system? Explain your answer and provide at least one example that occurred during the Precambr
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The Earth is essentially a closed system; it obtains lots of energy from the Sun but the exchange of matter with the outside is almost zero. Isolated systems can exchange neither energy nor matter with an outside system.

The Precambrian was originally defined as the era that predated the emergence of life in the Cambrian Period. It is now known, however, that life on Earth began by the early Archean and that fossilized organisms became more and more abundant throughout Precambrian time.

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A commercial advertising a diet pill says it is scientifically proven to help you lose weight. It is recommended by a doctor who
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No it hasn't been recommended by a doctor.

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This is considered pseudoscience because there is no proof that it has been scientifically proven.

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