vestigial limbs
vestigial limbs are the remnants from the development of any one organism's ancestors.
Humans, for one example, have no real need for an appendix now that we are no longer herbivores.
Look at a x-ray image of certain snakes and you can see the structural remains of feet.
The molecule called Deoxyribonucleic Acid. (DNA for short.)
DNA is the building blocks to life in every single living organism. Also, DNA contains over 3.2 billion combinations of genes that makes you...you! Literally: you. Even gene you posses controls your hair color, eye color, athletic ability(in some cases), even toe length! Even though its origin is debated and claimed throughout our society, it is the most astonishing, complex, and intriguing molecule of them all!
Enzymes as they are biological catalysts
Answer:
it depends on what your eating when you eat your body digests the food and uses what it can to provide what your body needs
Explanation: