Which one is not diploblastic?
Sponge
Cnidarian
Nematoda
Tenophora
C.
Nematoda
Diploblastic animals have two primary germ layers ectoderm and endoderm as in Porifera, Coelenterata and Ctenophora. Sponges belong to Phylum- Porifera, Cindarian belongs to Phylum- Coelenterata and tenophora belongs to Phylum- Ctenophora.
In algae, the bacteriological filter is
Oscillatoria
Batrachospermum
Nostoc
Cosmarium
D.
Cosmarium
Cosmarium commonly known as desmid and member of green algae has highly porous cell wall and these pores keep on secreting mucilage.
Feathery stigma belongs to
Wheat
pea
Datura
Caesalpinia
A.
Wheat
Stigma is the receptacle part of the carpel ,which is the female floral whorl. During the process of fertilisation, pollen grains get deposited on the stigma. A long and feathery stigma is generally found in flowers pollinated by wind. Their feathery nature helps in trapping pollen grains transported by wind.
The petiole modified into flattened lamina like structure is present in
Acacia nilotica
Acacia arabica
Acacia australasia
Acacia auriculoformis
D.
Acacia auriculoformis
The type of modification when petiole of leaf is modified into lamina or leaf blade like structure it is known as phyllode. It is only Australian species which forms phyllodes.
In Pinus
seed is winged but pollen grains are not
both seed and pollen grains are wingless
pollen grains are winged but seed is not
both seeds and pollen grains are winged
D.
both seeds and pollen grains are winged
Pinus is a large and economically important genus of coniferous evergreen trees chiefly of temperate regions of the northern hemisphere that includes a number which yield products (as pine tar) with medicinal applications. Winged seed and pollen grain is the
characteristic feature of Pinus.
Which one of the following pairs of plants are not seed producers?
Fern and Funaria
Funaria and Ficus
Ficus and Pinus
All of the above
A.
Fern and Funaria
Fern and Funaria are not seed producers as they are cryptogams whereas Ficus and Pinus are spermaphyta.
One of the set is wrongly matched
Chrysanthemum - Sucker
Garlic - Cloves
Cyanodon - Stolon
None of the above
C.
Cyanodon - Stolon
Cynodon is a genus of plants in the grass family. It has runners.
Chrysanthemums or mums or chrysanths, are flowering plants of the genus Chrysanthemum in the family Asteraceae. It is propogated vegetatively either through root suckers or terminal cuttings.
Which of the following plants are all roots?
Podostemon
Lemna
Wolffia
Utricularia
A.
Podostemon
Podostemon is a thalloid of assimilatory roots clinging to nodes by hyptera. Short living shoots grow from this root.
This place in India is called 'The Golden Mine of Liverworts'
Eastern Himalayas
Western Himalayas
Western Ghats
Eastern Ghats
A.
Eastern Himalayas
Liverwort is a small flowerless green plant with leaf like stems or lobed leaves, occurring in moist habitats. It lack true roots and reproduce by means of spores released from capsules. The Golden mine of liverworts is Eastern Himalayas. There are 320 endemic species of liverworts in this region.
Corm is an
underground vertical leaf
underground swollen stem
underground horizontal root
underground horizontal leaf
B.
underground swollen stem
Corm is a short vertical underground swollen stem which is fleshy and solid as seen in Gladiolus, Crocus and Colocasia.