Answer:
B. . exotic= ephemeral
Explanation:
An organism is considered as 'Exotic' if the organisms exist in an environment outside of their natural habitat (for examples, polar bear that is imported to a zoo in california.)
Ephemeral organisms on the other hand, exist naturally on ecosystem such as wetlands or lake. These organism do not exist all year long, but they did not live outside their natural habitat.
Answer:
Suggests that these are substitute goods
Explanation:
Demand cross elasticity measures the percentage change in the quantity demanded of a good given a percentage change in the price of another substitute good. Thus, the calculation of elasticity being 2, suggests that a percentage increase in the price of one store will increase the demand for products of the other store. In other words, a 1% increase in the price of one store will cause consumers to buy two units in the other store, replacing the store product whose price has increased.
Ammonia is likely to be the primary nitrogenous waste in living conditions that include <u>lots of fresh water flowing the gills of a fish</u>.
Nitrogenous wastes within the frame generally tend to form toxic ammonia, which need to be excreted. Mammals which includes humans excrete urea, even as birds, reptiles, and a few terrestrial invertebrates produce uric acid as waste.
Aquatic animals in general excrete ammonia. Ammonia is a small molecule that conveniently diffuses throughout skin and gills if enough water is available, however the kidneys inefficiently excrete ammonia. Ammonia is exceedingly toxic, and animals cannot continue to exist even mild ammonia concentrations in their frame fluids.
As a result, the marine organisms excrete ammonia without delay into the water and are referred to as ammonotelic. Ammonotelic animals consist of crustaceans, platyhelminths, cnidarians, poriferans, echinoderms, and other aquatic invertebrates.
Learn more about ammonia here: brainly.com/question/22684306
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Narrow in scope, because it was written almost exclusively by white European males.
Answer:
Active transport mechanisms do just this, expending energy (often in the form of ATP) to maintain the right concentrations of ions and molecules in living cells. ... Primary active transport directly uses a source of chemical energy (e.g., ATP) to move molecules across a membrane against their gradient.
