B
Now lol I have an A+ in that class
Eurythermic: (of an organism) able to tolerate a wide range of temperatures.
Stenothermic: <span>A </span>stenothermic<span> is a species or living organism only capable of living or surviving within a narrow temperature range.
</span> Euryhaline<span>: (of an aquatic organism) able to tolerate a wide range of salinity.
</span>Stenohaline: <span>(of an aquatic organism) able to tolerate only a narrow range of salinity.
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Answer:
Homologous features
Explanation:
If two or more species share a unique physical feature, such as a complex bone structure or a body plan, they may all have inherited this feature from a common ancestor. Physical features shared due to evolutionary history (a common ancestor) are said to be homologous.
DNA stands for Deoxyribonucleic Acid, so it's an acid
The first mutation is substitution and the second is deletion
