Answer:crop rotation efficient irrigation systems minimal use of fertilizers soil and water conservation
The last one, the planets formed at the same distance from the sun.
It form the contraction and relaxation of muscle
Answer:
<em>The correct option is C) Mitochondrial DNA can be traced for generations.</em>
Explanation:
The mitochondria are the organelles of the animal cell which contain their own genome. This genome also has the ability to produce proteins. The mitochondrial DNA passes from the mother to the children and remains identical. We can say that the mother and the children will possess the same mitochondrial DNA. In this manner, the mitochondrial DNA can be traced for generations as it remains the same for generations.
Acetyl choline.............