Metameric segmentation is the characteristic of
Options
(a) platyhelminthes and Anthropoda (b) Echinodermata and Annelida (c) Annelida and Arthropoda (d) Mollusca and chordata
Correct Answer:
Annelida and Arthropoda
Explanation:
No explanation available. Be […]
Two common characters found in centipede cockroach and crab are
Options
(a) compound eyes and anal cerci (b) jointed legs and chitiinous exoskeleton (c) green gland and tracheae (d) book lungs and antennae
Generally, reptile have 3(1/2) chambered heart except
Options
(a) crocodile,which have four chambered heart (b) alligator,which have four chambered heart (c) crocodile which have three chambered heart (d) both a and b
Correct […]
Which of the following is an important character for fern classification
Options
(a) Number of pinnae (b) Number of pinnules (c) shape of leaf (d) position of sori and form of indusium
Correct […]
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 […]
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
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
Options
(a) chara, spirogyra and fucus (b) ectocarpus, Laminaria and sargassum (c) Dictyota, polysiphonia and porphyra (d) Gracilaria, Gelidium and volvox
Correct […]
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
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
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