Which one of the following is wrong for fungi?
1.  They are eukaryotic
2.  All fungi possess a purely cellulosic cell wall
3.  They are heterotrophic
4.  They both are unicellular and multicellular

Methanogens belong to

1.  eubacteria

2.  archaebacteria

3.  dinoflagellates

4.  slime moulds

Select the wrong statement.

1.  The walls of diatoms are easily destructible

2.  Diatomaceous earth' is formed by the cell walls of diatoms

3.  Diatoms are chief producers in the oceans

4.  Diatoms are microscopic and float passively in water

The label of a herbarium sheet does not carry information on
1.  date of collection
2.  name of collector
3.  local names
4.  height of the plant

Conifers are adapted to tolerate extreme environmental conditions because of

1.  broad hardy leaves

2.  superficial stomata

3.  thick cuticle

4.  the presence of vessels

Which one of the following statements is wrong?

1.  Algae increase the level of dissolved oxygen in the immediate environment

2.  Algin is obtained from red algae and carrageenan from brown algae

3.  Agar-agar is obtained from Gelidium and Gracilaria

4.  Laminaria and Sargassum are used as food

The term 'polyadelphous' is related to

1.  gynoecium

2.  androecium

3.  corolla

4.  calyx

How many plants among Indigofera, Sesbania, Salvia, Allium, Aloe, mustard, groundnut, radish, gram and turnip have stamens with different lengths in their flowers?

1.  Three

2.  Four

3.  Five

4.  Six

Radial symmetry is found in the flowers of

1.  Brassica

2.  Trifolium

3.  Pisum

4.  Cassia

Free-central placentation is found in

1.  Dianthus

2.  Argemone

3.  Brassica

4.  Citrus