Gymnosperms: Distribution, Characteristics, and Taxonomy Quiz

Theophrastus, a pupil of Aristotle, first used the term 'Gymnosperm' in his book 'Enquiry into Plants'.

The word 'Gymnosperm' means 'necked seeds'.

The two major categories are Angiosperms and Gymnosperms.

<p>The ovules of gymnosperms are freely exposed before and after fertilization.</p> Signup and view all the answers

<p>The term 'Angiosperms' was used to signify plants with ovules enclosed within the carpel. It comes from 'Angios' meaning 'vessels' and 'Sperma' meaning 'seeds'.</p> Signup and view all the answers

<p>The plant kingdom Spermatophyta is divided into two subgroups: Angiosperms and Gymnosperms.</p> Signup and view all the answers

<p>They are slow growers, have limited means of dispersal of seeds, lack vessels in xylem, and are mostly unisexual.</p> Signup and view all the answers

<p>Gymnosperms can be dispersed by wind, animals, or human beings.</p> Signup and view all the answers

<p>They are able to grow on specific habitats and conditions, mostly terrestrial and unable to grow in aquatic habitats.</p> Signup and view all the answers

<p>Gymnosperms include tall trees, shrubs, and climbers, with the complete absence of herbs and climbers.</p> Signup and view all the answers

<p>The stem may be aerial, erect, unbranched or aerial, erect, branched.</p> Signup and view all the answers

<p>Gymnosperms bear both microphyllous and megaphyllous leaves.</p> Signup and view all the answers

<p>Gymnosperms show great diversity in leaf venation, including parallel, reticulate, or dichotomous venation.</p> Signup and view all the answers

<p>The arrangement of leaves may be whorled, opposite or decussate, or spirally arranged.</p> Signup and view all the answers

<p>Conifers usually have sunken stomata.</p> Signup and view all the answers

<p>The shape of leaves in gymnosperms may vary from triangular, semi-circular, bifid, to circular.</p> Signup and view all the answers