Purines are two ringed structures
pyrimidines are single ringed structures
Answer: Abortion is the killing of an unborn baby. Sometimes the head and bones are crushed, and pliers and scissors are used to slice and pull out the dead baby. I dont know how much it costs
Explanation:
Name the three types of barriers that can isolate populations.<span>
Answer: Behavioral isolation, geographic isolation, and temporal isolation</span>
Tephra<span> Greek, for </span>ash<span> is a generic </span>term<span> for any airborne pyroclastic accumulation. ... Within this size classification, specific types of </span>tephra<span> can be further </span>defined<span> by ... Some </span>lapilli<span>- to </span>bomb<span>-size pyroclasts maintain a frothy appearance. </span>
The correct option is this: BREAKING CARBON BONDS RELEASE ENERGY THAT ORGANISMS USE FOR LIFE PROCESSES. The food that are eaten by living organisms are composed of carbon element which bond in various ways with other elements. Chemical energy are stored inside this bonds and released for the organisms use when they are broken.
