The main function of the central nervous system (CNS) is responsible for integrating sensory information and responding accordingly. It consists of two main components: The spinal cord serves as a channel for signals between the brain and the rest of the body. It also controls simple musculoskeletal reflexes without input from the brain.
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The knowledge that can be gained from this is Knowledge about how genes work in vertebrates. Option D
<h3>What is genetic engineering?</h3>
Genetic engineering has to do with the procedure by which the genetic composition of an organism is modified. This is often carried out in a laboratory so as to produce new species of an organism or for scientific research purpose. We know that interaction of genes is determined by Mendelian genetics and the patterns of inheritance have been the constant subject of study.
As such, if a Zebrafish have been genetically engineered to glow in the dark, the knowledge that can be gained from this is knowledge about how genes work in vertebrates. We know that fish is an aquatic vertebrate because it possesses back bone as does other vertebrates (presence of vetebral column).
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Cnidarians <span>are the lower Invertebrates that have a jelly-like layer between endoderm and ectoderm</span>
Think recessive phenotypes as paper and dominant phenotypes as teared paper. Once paper is teared, it can't be fixed. Not even tape. It'll just leave that mess exposed. Same with dominant phenotypes. It just takes one dominant trait to change the looks of future offspring.
If you don't tear the paper, everything is fine. Same with recessive phenotypes. As long as there's no contact with any dominant phenotypes, the looks of future offspring will change.
