DNA?, because everyone’s DNA is unique and different in its own way
Chemical reactions that take place inside living things are called biochemical reactions. The sum of all the biochemical reactions in an organism is called metabolism.Metabolism includes both exothermic (energy-releasing) chemical reactions and endothermic (energy-absorbing) chemical reactions.
Answer: the reason of why the orange bellied parrots is on the bridge of extinction habitat destruction due to get wood to make house etc. there it could be due to degradation there is almost less than 17 in 2017 of these majestic parrots left and about 310 in cross-breeding in just a few years all of these parrots could be extinct any day these animals could go extinct the orange-bellied parrot is rated as critically endangered on the International Union for Conservation of Nature (IUCN)'s Red List of Endangered species. it isn't a matter of will it goes its when it will go extinct
Explanation: well I have facts that point to this answer
PLEASE CAN I HAVE BAINLEST
The building blocks of DNA are called nucleotides which is composed of a five carbon- sugar group, phospahate bond and four bases of nitrogen groups. this makes the DNA intact. The hydrogen bonds holds the c<span>omplementary base pairs together at the nitrogen bases. The nitrogen bases are uracil, guanine, thymine and adenine.</span>