Asked by jay
A scientist has discovered a new plant species in the Amazon rainforest. She tells her fellow scientists that the plant she has found produces a cone. What might they say about how this plant is different from an angiosperm?
Its seeds have one or two cotyledons.
Its stems' vascular bundles are scattered.
It does not depend on insect pollination.
All Answers 1
Answered by
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They would most likely say 3 only.
Reasoning:
- A cone-bearing plant is a gymnosperm. Gymnosperms are generally wind-pollinated and do not depend on insect pollination (statement 3).
- Statement 1 is incorrect: the “one or two cotyledons” distinction applies to angiosperms (monocots vs. dicots); many gymnosperms have multiple cotyledons.
- Statement 2 is incorrect: “scattered vascular bundles” is a monocot angiosperm trait. Woody gymnosperms have a vascular cambium and secondary xylem/phloem (not scattered bundles).
(There are exceptions—for example some gymnosperms have insect pollinators and some angiosperms are wind-pollinated—but the general distinction above holds.)
Reasoning:
- A cone-bearing plant is a gymnosperm. Gymnosperms are generally wind-pollinated and do not depend on insect pollination (statement 3).
- Statement 1 is incorrect: the “one or two cotyledons” distinction applies to angiosperms (monocots vs. dicots); many gymnosperms have multiple cotyledons.
- Statement 2 is incorrect: “scattered vascular bundles” is a monocot angiosperm trait. Woody gymnosperms have a vascular cambium and secondary xylem/phloem (not scattered bundles).
(There are exceptions—for example some gymnosperms have insect pollinators and some angiosperms are wind-pollinated—but the general distinction above holds.)
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