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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?
what are the differences between mesoglea and mesoderm
difference between unisexual and bisexual reproduction
WHAT ARE THE AERIAL ADAPTATIONS IN BIRDS?
the hypnotoxin produce by
b.volvent c.large gultinant d. small gultinant
what is difference between gills AND BOOK GILLS
IS POREFERA TRIPLOBLASTIC OR DIPLOBLASTIC?
what is the meaning of post anal tail in phylum chordate?
JUSTIFY THIS STATEMENT - "All vertebrates r chordates but all chordates r not vertebrates".
WHAT ARE THE ECONOMIC IMPORTACCO OF PHYLUM ARTHROPODA?
Is development direct in chondrichthyes?
between intracellular and extracellular digestion?
BIRDS have monocondylic or dicondylic skull??
difference between polyp and medusa in tabular form
phylum coelenterata are sessile. what is sessile?
what is the difference between hemichordata and chordata?
what is the differnece between vector and carrier??
At one time sponges were classified as plants. Why?
what is blind sac body plan ?
calculate the number of molecules present in 22g of carbon dioxide
what are the exceptions in biology?
WRITE THE GENERAL CHARACTERS OF THE CLASS MAMMALIA.
Is cnidaria hermaphrodite?
What is the mode of nutrition of archaebacteria?
what is the function of muscular phaynx of aschelminthes ?
what is the difference between metamerism and segmentation ??
all vertebrates are chordates but all chordates are not vertebrates...explain in detail....3 marks...
what is hypostome ( present in phylum cnidaria or phylum coelentereta)?
why ctenophora are known as sea walnuts and comb jellies?
Why are mammals so named?
what is malpighian tubules ?
is tree density positively correlated to mosquito densities?why?
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
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 are ostia?
what is thallus?
could the no of eggs produced by an oviparous and viviparous mother b equal?why?
In the flow chart for Phylum Chordata
Urochordata and Cephalochordata are known as Protochordates not Prochordates !!!!!!!!!!!!!
genaral charectics pf phyllum arthopoda.
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.
what is oviviviparous ??
An example of Pseudocoelom.
all vertebrates are chordates but all chordates are not vertebrates. justify.
how spider makes web
plz show me diagram of wuchereria (filarial worm) plz plz plz help me .
What is the difference between pectoral and pelvic fins ? please provide a diagram as well.....
Justify the statement"Mmmalia are the most succesful and dominat animal today" ?
What are the characteristics of phylum-porifera?
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