They leave their stoma closed during the day and opened during the night. Hope this helps.
A- non-native species can have positive and negative affects
The best and most correct answer among the choices provided by your question is the second choice.
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Introns are functional proteins that would contain the information contained within which of the following regions of DNA.</span>
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<span>The structure of a paramecium that holds a "reserve copy" of all the cell's genes is the micro nucleus.
</span>The micro nucelus is one of the <span>two kinds of </span>nuclei the paramecium has. The other is the<span> large ellipsoidal </span>nucleus<span> called a macronucleus. Every paramecium must have at least one small </span>nucleus<span> called a </span>micronucleus. The micronucleus is a storage site for the germline genetic material of the organism.
