“All vertebrates are chordates but all chordates are not vertebrates”. Justify the statement.
“All vertebrates are chordates but all chordates are not vertebrates”. Justify the statement.

“All vertebrates are chordates but all chordates are not vertebrates”. Justify the statement.
What are the peculiar features that you find in parasitic platyhelminthes?
What are the reasons that you can think of for the arthropods to constitute the largest group of the animal kingdom?
Water vascular system is the characteristic of which group of the following: (a) Porifera (b) Ctenophora (c) Echinodermata (d) Chordata
How important is the presence of air bladder in Pisces?
What are the difficulties that you would face in classification of animals, if common fundamental features are not taken into account?
Prepare a list of some animals that are found parasitic on human beings.
Both gymnosperms and angiosperms bear seeds, then why are they classified separately?
Write a note on economic importance of algae and gymnosperms.
Mention the ploidy of the following: protonemal cell of a moss; primary endosperm nucleus in dicot; leaf cell of a moss; prothallus cell of a fern; gemma cell in Marchantia; meristem cell of monocot; ovum of a liverwort; and zygote of a fern.
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