Assuming that they all belong to the same plant, arrange the following structures from smallest to largest. 

1. Antheridia 2. Gametes 

3. Gametophytes               4 .gametangia 

TLS Online TPP Program

#Question id: 19281

#Unit 9. Diversity of Life Forms

A botanist discovers a new species of plant in a tropical rain forest. After observing its anatomy and life cycle, the following characteristics are noted: flagellated sperm, xylem with tracheids, separate gametophyte and sporophyte generations with the sporophyte dominant, and no seeds. This plant is probably most closely related to 

TLS Online TPP Program

#Question id: 19282

#Unit 9. Diversity of Life Forms

This organism probably belongs to the same phylum as the 

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#Question id: 19283

#Unit 9. Diversity of Life Forms

Which of the following most closely represents the male gametophyte of seed-bearing plants? 

TLS Online TPP Program

#Question id: 19284

#Unit 9. Diversity of Life Forms

Which of these is most important in making the typical seed more resistant to adverse conditions than the typical spore? 

TLS Online TPP Program

#Question id: 19285

#Unit 9. Diversity of Life Forms

What is true of stamens, sepals, petals, carpels, and pinecone scales? 

TLS Online TPP Program

#Question id: 19286

#Unit 9. Diversity of Life Forms

scale of ovulate (ovule-bearing) pinecone