When there is density it controls the high and low pressure the answer is A
To classify animals and distinguish them
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<span>The oldest known vascular plants in the northern hemisphere are Devonian
This is true</span>
The process of importing free dna from the environment is called _transformation_.
The type of dna uptake that is dependent on viruses is called _transduction_.
The type of dna uptake that is dependent on transferable plasmids is called _cconjugation_.