The process which is a form of mechanical weathering is abrasion. This weathering process involves the wearing away or scraping of a rock's surface due to friction. The other options hydration, carbonation and oxidation are examples of chemical weathering. This means that these process involve a chemical alteration of the rock's composition through chemical reactions.
The right answer is B.
Thus, cancer is the consequence of an accumulation of genome alterations, somatic mutations (mutation affecting all types of cells except germ cells).
The mutation rate can be increased by some agents of the environment. This is the case of ultraviolet (UV) radiation that causes DNA damage and is responsible for many but not all skin cancers.
The second group is the:
Option D. control group
<h2>Answer:</h2>
Bt corn is a genetically modified organism that contains a gene of bacteria known as Bacillus thuringiensis.
<h3>Explanation:</h3>
- Bt corn is a type of transgenic crop that contains a gene which produces a crystal-like protein which has an insecticidal effect.
- This gene is present in bacteria. This gene is transferred to the plant by the recombinant DNA technology and genetic engineering.
- This bacterium is a soil bacterium which has no side effects on humans.
- Due to use of this technology, the poisonous chemical insecticides are not used in crop production.
<span>It is false that the three major types of faults are normal, reverse, and syncline. It is true that normal and reverse are indeed types of faults, but syncline aren't - instead of them, the third type are the strike-slip faults. Syncline fold is a term, but not a syncline fault - these folds occur as a result of a bend in a strike-slip fault.</span>