Horses sleep while standing, unless it is necessary for them to get REM sleep. The amount of REM sleep needed is not much, so they will spend most of their time when sleeping, standing.
<span>Population density (in agriculture: standing stock and standing crop) is a measurement of population per unit area or unit volume; it is a quantity of type number density. It is frequently applied to living organisms, and most of the time to humans.</span>
Prokaryotes do not contain membrane, and eukaryotes do contain membrane.
Answer:
Explanation:
Polarity of amino acids affects how they interacts. Amino acids such as valine, methionine, and alanine are nonpolar while serine, threonine, and cysteine are polar which mean they are hydrophilic this determines how the react.
The structure and the shape of amino acid also determines how they react.
The bond form between amino acids also affects its interaction