If you're talking about eukaryotic cells then it's the cell wall. If it's a prokaryotic cell sometimes the slime layer secreted by some bacteria may harden and form a capsule around the bacterial cell.
Hope i helped!
The answer would be c. only plant cells and some single cell organisms photosynthesize.
Since this is college level biology, you should know that red blood cells do not contain organelles... therefore it does not do a,c, and d. So, the question should say, which of the following is correct.
Answer:
The "tail" of the molecule is made up of two fatty acids, which are hydrophobic and do not dissolve in water. Following the rule of "like dissolves like", the hydrophilic head of the phospholipid molecule dissolves readily in water.
Nonpolar Fatty Acids
I Hope this answers your question :)
In evolutionary biology, phylogenetic trees are used to exhibit and illustrate the evolutionary relationships of two or more organisms, and identify the origins of life altogether. To achieve this, there are three methods of classification which are phonetics, cladistics, and taxonomic groups.
A. Potential energy to Kinetic energy.
It becomes Kinetic energy by rolling down the hill thanks to gravity and friction.
