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Subject: Biology, asked on 23/11/10

what is the differnece between vector and carrier??

Subject: Biology, asked on 14/9/12

what is difference between gills AND BOOK GILLS

Subject: Biology, asked on 14/4/13

what is blind sac body plan ?

Subject: Biology, asked on 15/9/16

In annelidans .... is fertilisation internal or external? And what about digestion?

Subject: Biology, asked on 23/9/12

calculate the number of molecules present in 22g of carbon dioxide

Subject: Biology, asked on 22/9/16

what is hypostome ( present in phylum cnidaria or phylum coelentereta)?

Subject: Biology, asked on 19/6/13

WRITE THE GENERAL CHARACTERS OF THE CLASS MAMMALIA.

Subject: Biology, asked on 17/8/12

what is the difference between metamerism and segmentation ??

Subject: Biology, asked on 5/5/13

 What is the mode of nutrition of archaebacteria?

Subject: Biology, asked on 20/9/16

Are cyclostomes oviparous or viviparous ? is fertilisation internal or external?

Subject: Biology, asked on 28/6/16

why is it so that the life span of a parrot is 140 years & that of a crow is just 15 years though both are of same size ?

Subject: Biology, asked on 15/6/15

With refrence to the scorpion which one of the following statement is correct:
1.the body consists of head, thorax and abdomen
2.they display mosaic and steroscopic vision
3.they have book lungs which corresponds to the gills of prawn
4.all of the above
Now my question is
Why the first option is not correct as answer told by my teacher is 3 option

Subject: Biology, asked on 21/7/17

What is the difference between water canal system in Porifers and water vascular system in Echinoderms?

Subject: Biology, asked on 1/3/12

all vertebrates are chordates but all chordates are not vertebrates...explain in detail....3 marks...

Subject: Biology, asked on 18/9/16

Is development direct in chondrichthyes?

Subject: Biology, asked on 11/3/13

what are the differences between mesoglea and mesoderm

Subject: Biology, asked on 19/8/10

why is octopus kept in phylum mollusca???????

it dosent have any shell????????

Subject: Biology, asked on 8/8/16

economical importance of lac insect ?

Subject: Biology, asked on 27/2/14

phylum coelenterata are sessile. what is sessile?

Subject: Biology, asked on 24/7/12

what is malpighian tubules ?

Subject: Biology, asked on 9/8/11

what are book lungs and book gills?

Subject: Biology, asked on 19/2/14

is tree density positively correlated to mosquito densities?why?

Subject: Biology, asked on 30/9/16

give an outline of classification of kingdom plantae with one example each.

Subject: Biology, asked on 22/9/16

What ia the difference between water vascular system and canal system?

Subject: Biology, asked on 6/9/21

Assertion: Animals that have an exoskeleton, lacks an endoskeleton.
Reason: Skeleton cells in the embryonic stage migrate to either stage and produce exoskeleton
or endoskeleton but never both.

Subject: Biology, asked on 20/7/13

why are urochordates called tunicates?

Subject: Biology, asked on 17/3/17

Is hydra herbivore or carnivore or omnivore?

Subject: Biology, asked on 3/9/12

1.]what is halophytic nutrition??

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2.]what are sessile animals??

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3.]what is spicules??

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4.] what is an hermaphrodite organism??

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Subject: Biology, asked on 25/11/12

function of anal cirri in nereis ?

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