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Time Table For Practice Test
Date
Topic
05/10/14
Type study : Starfish (Complete topic)
06/10/14
Practice Test for Classification (3 Phylum+ 15 Classes studied under 3 phylum) Complete paper based on characters of these
10/10/14
Arthropoda (Classification) + Study of special characters with reference to Arthropoda
12/10/14
Mollusca (Classification) + Study of special characters with reference to Mollusca
17/10/14
Echinodermata (Classification) + Study of special characters with reference to Echinodermata



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Parthenogenesis When development of organism takes place without fertilization, the process is called as parthenogenesis. Parthenogenesis is of two types viz. 1.       Natural 2.       Artificial Natural parthenogenesis: ·          Eggs that develop without fertilization naturally, the process is called as natural parthenogenesis. ·          It is commonly seen in Aphids, Phyllopods and Rotifers at sometimes of the years not always ·          Whereas in case of bees and wasps males are always produced from unfertilized egg. Thus, males are always haploid and females are diploid because females are produced from fertilized egg. ·          In some species such as Tenthredinidae, reproduction is alays parthenogenetically and males of this species are not known. ...

Starfish: External Characteristics

STARFISH SYSTEMATIC POSITION Kingdom: Animalia    Phylum: Echinodermata       Class: Asteroidae          Order: Forcipulata             Family: Asteriidae               Genus:   Asterias                  Species:   rubens HABIT & HABITAT: 1.        Asterias is exclusively marine in nature 2.        It is mostly found on sea costs and in shore waters 3.        It generally prefers rocky areas where locomotion and concealment is easier 4.        It is bottom dwelling benthoic organism 5.        It clings to submerged objects by firmly attaching to them. 6...