Hey there!
The answer is biotic! Biotic are all living factors in an ecosystem.
Hope this helped!
Hydrogen bonds are intermolecular (“between-molecule”) bonds, rather than intramolecular (“within-molecule”) bonds. They occur not only in water but in other polar molecules in which positive hydrogen atoms are attracted to negative atoms in nearby molecules. Hydrogen bonds are <em>relatively weaker</em> as chemical bonds. For example, they are much weaker than the bonds holding atoms together within molecules of covalent compounds.
Hydrogen bond is<em> weaker </em>than ionic and covalent bonds. Example: Water molecules are held to each other by intermolecular forces of attraction. Covalent bonds are the strongest bonds, meaning that atoms are actually held together by the physical sharing of electrons.
The following choices..:
A. Lipids have more hydrogen relative to oxygen than do carbohydrates.
B. Lipids and carbohydrates have different functions.
C. Lipids don't dissolve easily in water, while carbohydrates do.
D. Lipids do not chain together to form larger molecules, while carbohydrates do.
E. All of the above are correct
The answer would be E, all of the above
