Answer:
QUESTION:
where do I place Echinodermata on the phylogenetic tree?
ANSWER:
Echinoderms include starfish, sea urchins, sand dollars, and feather stars. Echinoderms are found in many different ocean environments, but most are found in reefs.
Explanation:
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Geologists can often match up rock layers over distances.
Answer:
Carbohydrates contain lots of energy
Explanation:
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Answer:
Proxima Centauri is 4.243 light years away
Explanation:
Answer:
The mice died
Explanation:
In Griffith's experiment, two strains of the same bacteria were used. S strain was smooth because it had a polysaccharide coat. This coat also made it virulent because mouse immune system was not able to destroy it and ultimately the mice died. R strain was rough because it did not have the coat and thus was harmless to mice.
When Griffith injected mice with dead S bacteria and living R bacteria together, the mice died. Live R bacteria had taken up the genetic material or as Griffith called "transforming principle" from the dead S bacteria and transformed into S bacteria. So live S bacteria were present again and they killed the mice.
