Moss peat is used as a packing material for sending flowers and live plants to distant places because

• it is easily available

• it is hygroscopic

• it reduces transpiration

• it reduces transpiration

The thalloid body of a slime mould (Myxomycetes) is known as

• Autosomal

• Cytoplasmic

• Y-linked

• Y-linked

In a moss the sporophyte

• is partially parasitic on the gametophyte

• produces gametes that give rise to the gametophyte

• arises from a spore produced from the gametophyte

• arises from a spore produced from the gametophyte

Which one of the following plants shows a very close relationship with a species of moth, where none of the two can complete its life cycle without the other?

• Hydrilla

• Yucca

• Viola

• Banana

85.

Oxygen is not produced during photosynthesis by

• Green sulphur bacteria

• Nostoc

• Chara

• Cycas

In which of the following forms is iron absorbed by plants?

• Ferric

• Ferrous

• Both ferric and ferrous

• Free element

Which one is wrongly matched?

• Uniflagellate gametes – Polysiphonia

• Biflagellate zoospores – Brown algae

• Unicellular organism – Chlorella

• Gemma cups – Marchantia

After karyogamy followed by meiosis, spores are produced exogenously in

• Neurospora

• Alternaria

• Saccharomyces

• Agaricus

Identify the wrong combination

• Dryopteris → Rhizome

• Cycas → Coralloid roots

• Volvox → Colonial form

• Marchantia →Pseudoelaters

Which one of the following is heterosporous?

• Equisetum

• Dryopteris

• Salvinia

• Adianturn