Is a permanent alteration in the DNA sequence that makes up a gene.
Answer: The answers are A,B,E,F
Explanation: because i listened to the wrong answers and they showed me what i had got wrong and it showed me the answers to the questions! IF YOU GUYS GET IT RIGHT LIKE THE ANSWER !! HOPE THIS HELPED!
<span>a wading shorebird, such as a heron</span>
The brain and spinal cord; a. They are the main structures when considering the whole of the nervous system.