B-Cytosine thymine I’m like 70% sure
Answer:
ATP donates energy through C phospho anhydride bond hydrolysis.
Explanation:
ATP or adenosine triphosphate is an energy rich compound which contain 3 phosphate moiety that are linked by 2 high energy phospho anhydride bonds.
The hydrolysis of phosphoanhydride bonds releases high amount of free energy which is used by cellular system of our body to exhibit various cellular,biological and physiological functions.
Some anoxygenic photosynthetic bacteria are able to use H2S or hydrogen sulfide as an electron donor.
Opportunistic pathogens only cause infection under certain circumstances eg in immune compromised hosts.
So what do u mean by that question u don't give enough information
I think it might be Stratosphere, if Ozone layer is an option I will suggest that too.
