Answer:
Aquatic
Explanation:
In aquatic environments, most of the upper and inferior eukaryons have external reproduction systems, for example, egg lying or free disposal of sperm. This is a common feature on fishes, mollusks, crustaceans, sea-worms, sponges and other lower forms.
It does not count for mammals, having these latest internal systems of reproduction.
All the other environment named, are terrestrial. Where the most majority of the living being had evolved to use internal fecundation.
The last one , sorry if i’m wrong
The main substance re-absorbed into the blood in the nephron are glucose, electrolytes (sodium, potassium, chloride) and water.
Almost all the glucose is reabsorbed at the proximal tubule of the nephron. Sodium, potassium and chloride are reabsorbed at the ascending loop of Henle, and water is reabsorbed at the descending loop of Henle.
Other nutrients that are reabsorbed are magnesium, phosphates, carboxylate, bicarbonate, amino acids, some urea, proteins and oligopeptides.
Reabsorption occurs in two steps namely active or passive extraction of sustances from the fluid in the tubules of the nephron, and into the interstitium , then transport of these substances from interstitium and into the bloodstream.
Answer:
The system of measurement that is used through out the world is know as <u>International System of Units or, in French, Système International (SI).</u>
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Explanation:
In order to describe motion, scientists use SI units to describe the distance an object moves.
<u>In system international (SI) or metric units, motion involves the units meters and seconds. </u>
Due to the consistency of units used the information described by one individual in a country is easily understandable by someone else in a different country .
For example: if someone describe the speed of an object to be 30 meters per second, anyone using the same units can understand this. whereas , the use of units such as foot per second is understandable to only small number of countries
4. The kidneys remove excess water from blood
