These are all caused by viruses.
Answer: Mutations can be good or bad.
Explanation:
I think it’s frameshift, sorry if it’s wrong though I’m not sure
Answer:
B. Populations of amphibians in a few local areas have declined dramatically in the last few decades
Explanation:
The continuous, low-level extinction of species that has occurred throughout the World and at least six species of frogs have not been seen for one to three decades and also it has recently been discovered that some species of salamander-specific chytrid has gone into extinction
Answer:
Well there could be many possiblities such as higher pest resistance, higher crop growth rate, and longer shelf life
Explanation:
