Adiantum is called walking fern because
Adiantum is called walking fern because
Options
(a) it walks by itself (b) it is dispersed by walking animals (c) of its walking spores (d) it grows vegetatively by its leaf tip
Correct […]
Biology
Sclerenchyma is thick walled tissue,which has depositions of
Sclerenchyma is thick walled tissue, which has depositions of
Options
(a) lignin on their cell walls (b) suberin on their cell walls (c) pectin on their cell walls (d) cellulose on their cell […]
In Citrus fruit a special type of berry called hesperidium is present,The edible
In Citrus fruit a special type of berry called hesperidium is present, the edible part of citrus fruit is
Options
(a) unicellur juicy hair arise from endocarp (b) epicarp (c) mesocarp (d) none […]
Which of the following is correct about heterospory
Which of the following is correct about heterospory
Options
(a) Selaginella and Salvinia are heterosporous (b) Heterosporous pteridophytes have macro and micro spores (c) The development of Zygote within female gametophyte is the […]
As tracheophytes ferns and seed plants have one thing in common
As tracheophytes ferns and seed plants have one thing in common
Options
(a) nourishing embryo from endosperm (b) having phloem in vascular bundles (c) producing eggs in ovaries (d) producing pollen in grains
Which of the following groups represents the al members of phaeophyceae
Which of the following groups represents the al members of phaeophyceae
Options
(a) chara, spirogyra and fucus (b) ectocarpus, Laminaria and sargassum (c) Dictyota, polysiphonia and porphyra (d) Gracilaria, Gelidium and volvox
Correct […]
In dicot stem,vascular bundles are conjoint,collateral and open whereas
In dicot stem, vascular bundles are cojoint, collateral and open whereas in monocots vascular bundles are
Options
(a) conjoint,colletral and closed (b) radial,colletral and open (c) radial,bicollateral and closed (d) concentric,collateral and open
Which set includes pathogenic arthropods
Which set includes pathogenic arthropods
Options
(a) Tse-tse fly,mosquito,flea plague (b) crab,culex,spider (c) Anopheles,culex,cray fish (d) silver fish,house fly,sandfly
Correct Answer:
Tse-tse fly,mosquito,flea plague
Explanation:
No explanation available. Be the first to write […]
Why cockroach blood does not contain respiratory pigment
Why cockroach blood does not contain respiratory pigment
Options
(a) It does not respire (b) It respires anaerbically (c) Oxygen passes to all the tissues through diffusion (d) Oxygen reaches tissue through tracheoles
A prothallus is
A prothallus is
Options
(a) a structure in pteridophytes formed before the thallus develops (b) a sporophytic free living structure formed in pteridophytes (c) a gametophyte free living structure formed in pteridophytes (d) […]