Answer:
D) relaxation of the airways in the lungs
Explanation:
- <u>Sympathetic nervous system is a part of the autonomic nervous system together with the parasympathetic nervous system.</u>
- Sympathetic nervous system functions to stimulate the fight or flight response. In other words it prepares the body for intense physical activity.
- The parasympathetic nervous system on the other hand has almost the exact opposite effect and relaxes the body and inhibits or slows many high energy functions
<span>The
main hormones involved in blood calcium regulation
is parathyroid hormone and calcitonin. They work <span>antagonistically. Parathyroid hormone causes resorption of calcium from
bone while calcitonin promotes its deposition. </span> </span>
Answer:
C. Genes are transcribed into mRNA, the mRNA is then translated into proteins, which determines specific traits.
Explanation:
Genes are segments of the genetic material (DNA) that encodes certain products, which are heritable. In the central dogma of biology, genes are expressed via two processes viz: transcription and translation.
Transcription is the process whereby the information in genes are used to synthesize mRNA molecule, while Translation is the process whereby the mRNA molecule is used to synthesize proteins in the ribosome.
The proteins are responsible for the individual characteristics or traits possessed by living organisms. For example, MELANIN GENE is transcribed into MELANIN mRNA, which is then translated into MELANIN PROTEIN responsible for the skin colour (trait).