They're used in sunscreens to block UVB light
All biological activities require energy?
A biolipid is a lipid which has biological activity.
Bio-activity refers to the ability of a substance or compound to have a specific biological effect, such as influencing a biological process, targeting a specific biological target, or causing a biological response. This term is commonly used in the fields of biochemistry, pharmacology, and medicine to describe the interactions of molecules with living systems.
Denatured
yep
there is a lack of biological activity on the moon
Proteins are involved in all of them.
Pentane does not have any significant biological uses. It is primarily used as a solvent in chemical laboratories and as a component in fuel blends.
The O horizon, also known as the organic layer, contains the most biological activity in soil. This horizon consists of decomposing organic matter like leaves and plant residues, providing nutrients for microorganisms and promoting their activity.
A benzimidazolium is a cation formed by protonating benzimidazole, the salts of which have biological activity.
Quantitative structure-activity relationship (QSAR)(sometimes QSPR: quantitative structure-property relationship)QSAR is the process by which chemical structure is quantitatively correlated with a well defined process, such as biological activity or chemical reactivity.For example, biological activity can be expressed quantitatively as in the concentration of a substance required to give a certain biological response. Additionally, when physicochemical properties or structures are expressed by numbers, one can form a mathematical relationship, or quantitative structure-activity relationship, between the two. The mathematical expression can then be used to predict the biological response of other chemical structures.http://en.wikipedia.org/wiki/Quantitative_structure-activity_relationship
Phytochemicals