Answer:
When there is a mistake in the copying of the genetic message that is permanent, a mutation has occurred. Two of the bases in DNA (Cytosine and Thymine) are the most vulnerable, and when this happens, they may pair with each other or themselves and the message is changed.
Explanation:
hope this helps you
Answer:
Tissue - cardiac muscle
Organ -heart
Organ system - circulatory system
Organism*addition- human body
Explanation:
Before the food handler touch the chicken, lettuce, tomato and bun, the food handler should wash his hands first and ensure that he or she is wearing the right equipment when handling the food such as mask, gloves and goggles if necessary to prevent any contamination to the food.
Respiration is the ability to break down nutrients to make energy, so the answer should be the fourth option.
