The answer to this question is choice d because it describes a nerve impulse
Osmosis pressure is actually the minimum required pressure that should be applied to a solution to prevent the WATER from flowing inwards across the semipermeable membrane.
An animal cell hat is surrounded by fresh water will burst because the osmotic pressure causes the water to move into the cell.
Answer is (A)
The term that would best define the fish added to the pond is introduced species.
<h3>What is introduction of a species?</h3>
Adaptation to the conditions of the place in which it was inserted, the absence of predators and degradation are the main factors that lead an exotic species to become invasive, competing with native species for resources and causing a great impact on the community.
In this case, the introduced species are exotic species which has arrived there by human activity, may even be harmful to the entire ecosystem because they can break the delicate equilibrium of the ecosystem.
See more about introduced species at brainly.com/question/21452505
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Radial symmetry I believe
<span>Great minds combined with technological advancements have a lead to creations and achievements that would have been impossible. Whatever great scientist of the past has achieved have already been surpassed or improved through modern and innovative ideas and processes. An excellent example of which is the direct manipulation of an organism’s DNA, also known as genetic engineering or genetic modification (GM). Coming from the terms genes and modify, the entire process is something out of a science fiction movie. Well, it used to be that way until the practice was perfected and used in actual applications. Genetic engineering made it possible to add new DNA or alter bad ones.</span>