Answer:
(all cells) Sum of all the chemical reactions that take place in the body, consisting of anabolism and catabolism.
Explanation:
A because heat is a form of energy and the coffee is heating up the ice cube and it is not D because it is not releasing any byproducts when the ice cube is melted
Mutations are spontaneous and occur at random however there are some mutagenic agents which increase the chance of this happening such as radiation exposure. If it is a point shift mutation then only a few bases on the dna sequence are changed so only changes a few of the amino acids in that chain (such as inversion of a base). If its a frame shift then the base sequence is altered so much so that every amino acid from after that changes (such as deletion of a base) which can create things such as cri-du-chat syndrome which results from a piece of chromosome 5 is missing. Hope this helps:)
