Introduction

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Hello everyone,
            Welcome to Bioniac. In this blog, we are going to discuss about biology books in details. Stay tuned for more updates :)

Toodles 👋🏻

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ANATOMY OF FLOWERING PLANTS PART-1: PLANT TISSUE

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ANIMAL KINGDOM Part-3, NCERT Class-11

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Body Organisation Animals have three germinal layers of cell in their embryonic stage. Those layers are called Ectoderm , Endoderm and Meroderm . On the basis of presence of mesoderm or middle layer, animals are divided into two  categories- • Diploblastic: Animals that have only two embryonic layers are called diploblastic body organisation. They lac the mesoderm layer. An undifferentiated layer called mesoglea is present instead of mesoderm e.g. Coelenterates • Triploblastic: Animal that have all three embryonic layers are called to have triploblastic body organisation. Mesoderm is present in between Ectoderm and Endoderm. e.g. Platyhelminthes to Chordates   Body organisation (Germinal layers) (a) Diploblastic (b) Triploblastic Click  here  for part 1 of this chapter Click  here  for part 2 of this chapter
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ANIMAL KINGDOM Part-2, NCERT Class-11

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Symmetry • Asymmetrical: Any plane that passes through the center doesn't divide the following organism into two equal half e.g. sponges • Radial Symmetry: Any plane that passes through the central axis of the body divides the following organism into two equal halves e.g.   Coelenterates , Ctenophores, Adult Echinoderms      Radial Symmetry( Hydra sp. ) • Bilateral Symmetry: The body of the following organism can be divided into two equal halves if and only if the cutting plane pass through in a particular way through central axis e.g. Annelids , Arthropods etc. Bilateral Symmetry( Brachyura sp.) Click  Here  for part 1 of this chapter
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