Multiple Choice QuestionsWhich one of the following is categorised under living fossils?
Selaginella
Metasequoia
Pinus
Cycas
Chlorenchyma is known to develop in the
spore capsule of a moss
pollen tube of Pinus
cytoplasm of Chlorella
mycellium of a green mould such as Aspergillus
The character found only in halophytes is
sunken stomata
vivipary
velamen tissue
heterophylly
B.
vivipary
Vivipary is the phenomenon of having seeds germinating within the fruit, eg, halophytes (mangrove plants).
Sunken stomata are found in xerophytes, heterophylly (occurrence of different kinds of leaves in a single plant) is found in hydrophytes, while velamen tissue is found in epiphytes.
Velamen provides a mechanical function protecting the vascular tissues in the root cortex, shielding the root from transpirational water loss. It also adhered the plant to the substrate.
Which one of the following is a saprophytic bryophyte?
Riccia fluitans
Buxbaumia aphylla
Funaria hygrometrica
Sphagnum
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