The short (∼20 amino acid) C-terminal tails of both α- and β-tubulin that protrude from the microtubule are enriched in which amino acids?

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#Question id: 19286

#Unit 9. Evolution & Diversity of Life Forms

scale of ovulate (ovule-bearing) pinecone 

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#Question id: 19287

#Unit 9. Evolution & Diversity of Life Forms

Integument of pine seed 

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#Question id: 19288

#Unit 9. Evolution & Diversity of Life Forms

Egg cell in the embryo sac

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#Question id: 19289

#Unit 9. Evolution & Diversity of Life Forms

Megasporangium of pine ovules 

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#Question id: 19290

#Unit 9. Evolution & Diversity of Life Forms

If one were to erect a new taxon of plants that included all plants that are pollinated by animals, and only plants that are pollinated by animals, then this new taxon would be 

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#Question id: 19291

#Unit 9. Evolution & Diversity of Life Forms

Reptilian embryos are protected from desiccation by a leathery shell. Similarly, which pair of structures protects seed plantsʹ embryos and male gametophytes, respectively, from desiccation?