Safranin is a basic biological dye commonly used as a counter-stain in some of the staining protocols like gram staining.
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1. The group nearest the end or with the shortest stem of a phylogenetic tree has evolved most recently. In this case it is eutherians.
2. The group with the longest stem has been around the longest: fish
3. A direct common ancestor will share the same immediate line, like marsupials and eutherians. Fish and marsupials do not have a common direct ancestor.
<span>Nitrogen fixation is made by numerous prokaryotes, including bacteria, actinobacteria, and certain types of anaerobic bacteria. Organisms that fix nitrogen are called Diazotrophs.</span>
Answer:
C: Exponential growth occurs because the field provides unlimited resources during the summer.
Explanation:
I just took the test rn on Savvas and got 100%.
