Which of the following statements is incorrect regarding $Cycas$?
- AIts xylem has vessels.
- BIt has circinate vernation.
- CIt does not have a well-organized female flower.
- DIts roots possess some blue-green algae.
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Consider the following statements regarding gymnosperms and choose the correct option.
$I.$ In gymnosperms,the male and female gametophytes have an independent existence.
$II.$ The multicellular female gametophyte is retained within the megasporangium.
$III.$ The gymnosperms are heterosporous.
Of these statements:
$I.$ In gymnosperms,the male and female gametophytes have an independent existence.
$II.$ The multicellular female gametophyte is retained within the megasporangium.
$III.$ The gymnosperms are heterosporous.
Of these statements:
Medium
View SolutionPlants in which seeds are produced on megasporophylls and are not enclosed by fruits are included in which group?
Easy
View SolutionCoralloid roots of $Cycas$ are distinguished from angiosperm roots by
Which type of leaves are found in Gymnosperms?
Medium
View SolutionWhich of the following is a living fossil?
Easy
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