Answer:
Mutations in that organism, which can possibly lead to cancer (via mutations in the proto-oncogenes or tumor-suppressor genes)
Answer:
ggggggggggggggggggggguuuuuuuuuddddddddddddddddddddddddd
Explanation:
<h2>Answer:</h2>
A) classification of organisms
<h2>Explanation:</h2>
With the advancement of technology, many plants and animal were re-classified and reversed. For instance due to the advanced light microscope, which had high resolution and magnification, scientists were able to identify the structure of many organisms on a highly molecular level. Whitaker was a biologist who distinguished that fungi was separate from plants because fungi doesn’t have chlorophyll. Similarly there are so many evidences that resulted in the re-classification of organisms.
If a zebra mussel is discovered in a lake in Pennsylvania, then the ecologist would be worried because it is an invasive species. The zebra mussel is native to Ukraine and Russia, but if it has been found in Pennsylvania, than it means that it has been introduced in this area. As an invasive species, the zebra mussel can be very dangerous for the native species in the lake. The invasive species usually are more competitive for food sources than the native species, manage to reproduce quicker, bring in diseases, and the native species tend to not have defense mechanisms for them. This leads to rapid decline or even extinction in the native species, while the invasive spreads out quickly and takes over, resulting in dramatic change in the whole ecosystem.
