Answer:
a) the covalent bond between the last phosphate and the middle phosphate
Explanation:
The ADP is composed by a molecule of Adenine, Ribose and two Phosphate groups. The addition of a paper weight in the spring represents the last phosphate added in a ADP, resulting in a ATP. The last phosphate connected with Ribose by a covalent bond, represented by the round paper weight connected to a spring, can be easily detached in order to provide energy to the cell by a process called dephosphorylation. The spring compressed represents the energy of the bond. In the model the compressed spring is represents the potential energy, but in the bond the energy is chemical, which will lead into a electron transference reaction.
A tool mark in a door frame contains small particles; The best way to collect them while leaving them in context is by making a cast. A tool mark is any impression, scratch, or abrasion made when contact occurs between a tool and an object. Abrasion marks are the tool marks made when surfaces slide across one another; objects such as pliers, knives, axes, or a gun barrel make this type of mark. There are three types of tool mark impressions; namely; indentation, abrasion, and cutting marks.
I don’t know 22 but I think 21 is B
<em>both producers and consumers are the part of ecosystem but finally either directly or indirectly they become food of the decomposers that may be micro-organisms or the larger parasite or saprophyte ..
organisms taking food from living host are parasite while taking food from dead matter are saprophytes..</em>
