Answer:
<em>Comparisons of items eaten for food</em>
Explanation:
If we compare the diet intake of different organisms we will not be able to predict whether the organism has an evolutionary history or not. Hence, comparisons of items eaten for food is the LEAST useful technique to explore evolutionary history among organisms.
Other options mentioned will however be beneficial in understanding the evolutionary history among organisms. For example, analysis of DNA strands of different animal species will tell us the similarities and differences in the DNA strand. As a result, we will e able to predict whether they have evolutionary history or not.
Answer:
Chemical families on the periodic table are the following:
1) Alkali metals.
2) Alkaline earth metals.
3) Transition metals.
4) Halogens.
5) Noble gases
Explanation:
Alkali metals are those elements having one electron in the outermost shell. Alkaline earth metals are found in the earth such as calcium. Halogens means salt forming, it produces salts when combine with alkali. Noble gases are those which are non-reactive in nature.
Answer:
Please elaborate more your given question since I don't understand it.
Explanation:
Exxon and EPA cleaned miles of beaches, and they generated a wealth of information for those looking at new ways to clean up hazardous wastes.
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