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what is the difference between radial symmetry and bilateral symmetry since in both the body has to be divided into two equal halves.
The first largest phylum is Phyllum arthroproda and the second is phyllum mollusca,then which is the third one?
what are book lungs and book gills?
difference between unisexual and bisexual reproduction
WHAT ARE THE AERIAL ADAPTATIONS IN BIRDS?
what is difference between gills AND BOOK GILLS
IS POREFERA TRIPLOBLASTIC OR DIPLOBLASTIC?
JUSTIFY THIS STATEMENT - "All vertebrates r chordates but all chordates r not vertebrates".
WHAT ARE THE ECONOMIC IMPORTACCO OF PHYLUM ARTHROPODA?
between intracellular and extracellular digestion?
BIRDS have monocondylic or dicondylic skull??
difference between polyp and medusa in tabular form
what is the difference between hemichordata and chordata?
what is the differnece between vector and carrier??
calculate the number of molecules present in 22g of carbon dioxide
what is blind sac body plan ?
WRITE THE GENERAL CHARACTERS OF THE CLASS MAMMALIA.
What is the mode of nutrition of archaebacteria?
what is the difference between metamerism and segmentation ??
all vertebrates are chordates but all chordates are not vertebrates...explain in detail....3 marks...
what are the differences between mesoglea and mesoderm
what is malpighian tubules ?
is tree density positively correlated to mosquito densities?why?
why are urochordates called tunicates?
1.]what is halophytic nutrition??
2.]what are sessile animals??
3.]what is spicules??
4.] what is an hermaphrodite organism??
what are choanocycles or collar cells?
difference between open type and closed type circulatory system in tabular form?
which is the most poisonous snake in the world?
what is hypostome ( present in phylum cnidaria or phylum coelentereta)?
what is thallus?
In the flow chart for Phylum Chordata
Urochordata and Cephalochordata are known as Protochordates not Prochordates !!!!!!!!!!!!!
what is metagenesis in CNIDARIANS?
what does ossified endoskeleton mean?
Is there any connecting link between
1.Amphibians and Reptiles
2.Aves and Mammals
What do direct and indirect development mean?
Give one scientific term for the following:
1. Blood filled cavity in arthropods.
2.A collection of nerve cell bodies.
circulatory system of cockroach differs from that of the earth worm in:
1) lacking capillary network
2) lacking large blood vessels
3) possessing valves in large blood vessels
4) having a higher speed of circulation
An example of Pseudocoelom.
all vertebrates are chordates but all chordates are not vertebrates. justify.
plz show me diagram of wuchereria (filarial worm) plz plz plz help me .
Justify the statement"Mmmalia are the most succesful and dominat animal today" ?
What are the characteristics of phylum-porifera?
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