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PNB 2250 Exam 1 Questions and Answers 100% Pass

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PNB 2250 Exam 1 Questions and Answers 100% Pass

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PNB 2250 Exam 1 Questions and
Answers 100% Pass


Plant specific cell to cell connections - ✔✔plasmodesma


animal specific cell to cell connections - ✔✔tight junctions


What systems are able to exist because of multicellularity? - ✔✔Control systems and

distribution


What organisms have the highest number of genes? - ✔✔Plants


Why is the fossil record incomplete? - ✔✔loss of soft tissue and DNA


What is the extant ancestor to animals? - ✔✔Choanoflagellate


What traits do choanoflagellates have that are similar to animals? - ✔✔animal specific

genes, cell adhesion, and signal pathways


analogous structures - ✔✔similarities among unrelated species that result from

convergent evolution


Entropy - ✔✔2nd Law of Thermodynamics; system stability requires energy input


what is the single most important physical factor? - ✔✔entropy



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