At which point on the phylogenetic tree below did each of the following evolve?

Question

At which point on the phylogenetic tree below did each of the following evolve?

The numbers above may be used once, more than once, or not at all.

abcdefghi 1. airborne spores abcdefghi 2. seeds abcdefghi 3. alternation of generations abcdefghi 4. ovules abcdefghi 5. fruits abcdefghi 6. dominant sporophyte generation abcdefghi 7. pollen abcdefghi 8. multicellular sporophyte abcdefghi 9. flowers a. Position 1 b. Position 6 c. Position 7 d. Position 3 e. Position 4 f. Position 2 g. Position 9 h. Position 8 i. Position 5

Explanation / Answer

Answer

1. airborne spores---- position 2

2. seeds------ position 7

3. alternation of generatons ------ position 1

4. ovules-------position 7

5. fruits -------- position 8

6. dominant sporophyte generation ------- position 5

7. pollen ------ position 7

8. multicellular sporophyte ----- position 1

9. flowers ----- position 8

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