What human reproductive organ is functionally similar to this seed?
What human reproductive organ is functionally similar to this seed?
What human reproductive organ is functionally similar to this seed?
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Fig. 30-12<br />
Microsporangia<br />
(contain<br />
microspores)<br />
Living<br />
gymnosperms<br />
Bennettitales<br />
Amborella<br />
Water lilies<br />
Most recent common ances<strong>to</strong>r<br />
of all living angiosperms<br />
Star an<strong>is</strong>e and<br />
relatives<br />
Monocots<br />
Magnoliids<br />
Eudicots<br />
Ovules<br />
(a) A possible ances<strong>to</strong>r of the<br />
angiosperms?<br />
300 250 200 150 100 50 0<br />
Millions of years ago<br />
(b) Angiosperm phylogeny