Answer:
A
Explanation:
Gryes are know as spirals or vortexs, especially in the oceans
Forests are only renewable as long as careful planning is done to determine how many trees to cut and to nake sure new trees are planted to replace them.
Nitrogen is special because it is necessary for growth and reproduction. It's needed for plants and animals to survive. The main function for the atmosphere i believe is to give oxygen and nitrogen.
They are both types of seismic waves produced by the sharp movement of rock within the earth.
Answer: Point mutation is easily reversible, thus non-lethal
Explanation:
Point mutation is caused by exchange of a single nucleotide for another. These change is called
1) Transition (when a purine base substitute another purine base, or pyrimidine bases substitute each other)
2) Transversion (when a purine base substitute a pyrimidine base).
However, note that a point mutation can be easily reversed by another point mutation; so, the claim that a nucleotide difference in the Hsr12 gene caused the human disease is inaccurate
