Free Net Life Science Study Materials

CSIR JRF NET Life Sciences December 2017 Model Question (12)

(1).  The characteristics of organisms the reaches first to barren Island during the ecological succession: a.       Slow growth and small generation time b.      Slow growth and large generation time c.       Fast growth and small generation time d.      Fast growth and large generation time Learn more: Process of Ecological Succession (2). […]

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microspores vs megaspores

Difference between Microspores and Megaspores

Microspores vs Megaspores Microspores and megaspores are sexual spores produced by vascular plants (some Pteridophytes and all Gymnosperms and Angiosperms) for sexual reproduction. Both microspores and megaspores on germination produce the respective gametophytic generations. The gametophytes on maturation produce sex organs and gametes to establish the fertilization and thus to […]

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Significance of Heterospory

Heterospory and Seed Habit in Pteridophytes

Heterospory is the production of two or more types of spores. It is a condition of the production of more than one types (usually two) of spores in a single plant. These two types of spore differ in their formation, structure and most importantly its functions and sexuality. In Pteridophytes, these […]

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