Explanation:
The division comprises a tremendous diversity of plants among its four subgroups: psilopsids, leafless and rootless primitive forms commonly known as whisk ferns (though not true ferns); sphenopsids, feathery leaved plants commonly called horsetails; lycopsids, low-lying plants called club mosses; and pteropsids,
Formed by temperature and pressure changes inside the earth
Perhaps one wing is larger or one is tilted
Answer:
isolated I think I need more instructions
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