The main differences are that eukaryotes have membrane-bound organelles and the nucleus, which enables them to create much more complex multi-cellular organisms, which is impossible for the prokaryotes.
<span>The correct answer is B. their kidneys can't excrete concentrated salt. Since salt is dissolved in water, the organism sends its water reserves to the kidneys to dissolve and excrete the salt but this leads to dehydration. That's why people at sea who don't know what they're doing often dehydrate themselves by drinking sea water, thinking that they're safe.</span>
The main function of carbohydrates is:
B. <u>Storing energy</u>
Answer:
A vector quantity has a direction and a magnitude, while a scalar has only a magnitude. You can tell if a quantity is a vector by whether or not it has a direction associated with it.
Explanation:
Example: Speed is a scalar quantity, but velocity is a vector that specifies both a direction as well as a magnitude.
I don’t know how to explain it but this might help
