Recent questions tagged medium

Regarding Phylum Coelenterata (Cnidaria) all are correct except :

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Regarding habitat and habit of Phylum Coelenterata (Cnidaria) :

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Regarding Phylum Coelenterata (Cnidaria) :

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Choose the odd one out :

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Regarding reproduction in sponges:

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Sponges have a water transport or canal system which is helpful in:

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Non-chordates are:

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Assertion (A): The digestive system in Platyhelminthes is complete. Reason (R): The digestive system in Platyhelminthes has a single opening to the outside of the body that serves as both mouth and anus Regarding (A) and (R) :

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Syngamy and Triple fusion are respectively:

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Plant life cycle and alternation of generations: 1. The haploid plant body represents a gametophyte. 2. The haploid plant body produces gametes by meiosis. Regarding 1 and 2:

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In plants: Assertion (A): The body of a plant may be - haploid sporophyte and diploid gametophyte. Reason (R): In plants, both haploid and diploid cells can divide by mitosis. Regarding (A) and (R) :

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Identify the correct statement:

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Identify the correct sequence:

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In gymnosperms : 1.The megaspore mother cell is differentiated from few of the cells of the nucellus. 2.The nucellus is protected by envelopes and the composite structure is female cone. Regarding 1 and 2:

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In Gymnosperms : 1. The male or female cones or strobili may be borne on the same tree as in Pinus 2. In cycas male cones and megasporophylls are borne on different trees. Regarding 1 and 2:

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1. One of the angiosperms, the giant redwood tree Sequoia is one of the tallest tree species. 2. The leaves in gymnosperms are ill-adapted to withstand extremes of temperature, humidity and wind. Regarding 1 and 2:

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In conifers (Gymnosperms):

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The gymnosperms are plants in which:

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The pteridophytes are further classified into following classes except:

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Assertion (A): The spread of pteridophytes is unrestricted and have spread to many geographical regions Reason (R): The gametophytes of pteridophytes require cool, damp, shady places to grow and need for water for fertilisation Regarding (A) and (R) :

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Choose the incorrect statement:

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Pteridophytes are used for:

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Choose the odd one out:

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1. The sporophyte in liverworts is more elaborate than that in mosses. 2. The mosses have an elaborate mechanism of spore dispersal. Regarding 1 and 2:

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The predominant stage of the life cycle of a moss is the gametophyte which consists of

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1. Regarding the economic importance of mosses: Species of Sphagnum, a moss:

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Assertion (A): Mosses prevent soil erosion. Reason (R): Mosses form dense mats on the soil, they reduce the impact of falling rain Regarding (A) and (R) :

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Assertion (A): The main plant body of the bryophyte is called a gametophyte. Reason (R): The main plant body of the bryophyte is diploid. It produces gametes after meiosis Regarding (A) and (R) :

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1. Bryophytes play an important role in plant succession on bare rocks or soil. 2. The plant body of bryophytes is more differentiated than that of algae. Regarding 1 and 2 :

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Assertion (A):Bryophytes are also called amphibians of the plant kingdom Reason (R): Bryophytes can grow in both soil and water Regarding (A) and (R) :

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Regarding Floridean starch:

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In Rhodophyceae:

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Assertion (A):The members of rhodophyceae predominantly have r-phycoerythrin in their body Reason (R): r-phycoerythrin, a red pigment gives them red colour hence commonly called red algae Regarding (A) and (R) :

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Some commonly found green algae are all except:

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Some commonly found green algae are all except:

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The common member/s of Rhodophyceae are all except:

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The common form/s of Phaeophyceae are all except:

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The common member/s of Rhodophyceae are all except:

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Assertion (A): The members of phaeophyceae or brown algae vary in colour from olive green to various shades of brown Reason (R): Colour depends upon the amount of the xanthophyll pigment, fucoxanthin present in them Regarding (A) and (R) :

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The members of phaeophyceae or brown algae are found primarily in :

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Some commonly found green algae are all except:

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Green algae usually have a rigid cell wall made of :

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The chloroplasts of Members of Chlorophyceae may not be of ___________ shape (choose the best response)

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Members of Rhodophyceae mostly grow in -

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Members of Phaeophyceae rarely grow in -

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Regarding Algae's ecological importance choose the incorrect one:

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Regarding Algae choose the correct one:

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Regarding Phylogenetic classification systems which one is incorrect:

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One of the natural classification systems developed by George Bentham and Joseph Dalton Hooker for classification of flowering plants did not include:

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The earliest systems of classification :

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