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What do you notice as differences in the apple tree life cycle compared to the lodgepole...

What do you notice as differences in the apple tree life cycle compared to the lodgepole pine, the moss, and the fern life cycles? Thinking through and discussing these comparisons is particularly helpful for answering Questions 2 and 3 in your Lab 7 Assignment.

please explain the differences of life cycles.

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Answer #1
Moss Fern Pine Apple
Dominant phase gametophyte sporophyte sporophyte sporophyte
Plant body less differentiated more differentiated highly differentiated highly differentiated
Vascular tissue - + + +
Secondary growth - - present in some present in dicots
Fertilization external via water external via water internal internal
Tranfer of male gametes to female gamete via water via water via air via pollination
Pollen grains - - + +
Embryo sac - - + +
Seed - - + +
Fruit and flower - - - +

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