Q-1. What
are the difficulties that you would face in classification of animals if common
fundamental features are not taken into account?
are the difficulties that you would face in classification of animals if common
fundamental features are not taken into account?
i)
The picture of animals at a glance will not be projected.
The picture of animals at a glance will not be projected.
ii) The development of
other animal species will not be made.
other animal species will not be made.
iii) The
inter-relationship among animals will not to traceable.
inter-relationship among animals will not to traceable.
Q-2) If
you are given a specimen, what are the ships that you would follow to classify
it?
you are given a specimen, what are the ships that you would follow to classify
it?
1)
Steps are :- a) levels or
gradation
Steps are :- a) levels or
gradation
b)
Patterns in organization.
Patterns in organization.
c)
Symmetry
Symmetry
iv)
Diploblastic triploblastic
Diploblastic triploblastic
v) Body cavity or Coolum
vi)
Segmentation
Segmentation
Q-3.
How useful in the study of the nature
of body cavity & coelom in the classification of animals?
How useful in the study of the nature
of body cavity & coelom in the classification of animals?
The body cavity which is derived
& bind by mesoderm is called coelom & the animals are called coelomatus
eg= molecules
& bind by mesoderm is called coelom & the animals are called coelomatus
eg= molecules
ii) When there is the mesoderm is lived
as poach like is called pseudocoelom & the animals called pseudocoelomatus
e.g. = Aschihelmenthis
as poach like is called pseudocoelom & the animals called pseudocoelomatus
e.g. = Aschihelmenthis
iii) When there is absence of mesoderm,
it is called acoelomates.
it is called acoelomates.
E.g. =
poriferas.
poriferas.
4)
Distinguish between intracellular & intracellular digestion
Distinguish between intracellular & intracellular digestion
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Intra – cellular
i) Digestion takes
place within the cell
ii) It is
comparatively less efficient.
iii) few enzymes are
associated with the digestion
e.g. = Amoeba
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Extra – Cellular
I)
Digestion takes place outside the cell & the alimentary canal
ii) this digestion is
comparatively more efficient
iii) Large no of
digestive glance & enzymes are associated with this digestion.
E.g. = Man.
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b) Differentiate between direct &
indirect development.
indirect development.
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Direct
I) Here young ones
resemble the adults in all respects
ii) Then is no
intermediate stage
iii) e.g. Hydro, man
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Indirect
I) Here the young’s
one do not recourses the adults.
2) The young ones usually
pass through one or more intermediate stages before consisting the shape of doer.
E.g. = silk moth.
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6) What are peculiar features that you
find in parasitic platyhelmenthis?
find in parasitic platyhelmenthis?
Thick
tegument (60 dye covering)
tegument (60 dye covering)
Adhesive
organs like suckers & hook
organs like suckers & hook
Mostly
anaerobic respiration
anaerobic respiration
Cool
of locomotors organs.
of locomotors organs.
7) What are the reasons that you can
think of for the arthropods to constitute the largest group of the animal
kingdoms?
think of for the arthropods to constitute the largest group of the animal
kingdoms?
Tough
cuticle body
cuticle body
Nervous
systems are better developed.
systems are better developed.
Sense
organs are well developed.
organs are well developed.
Joined
appendages
appendages
8) Water vascular system is the
characteristic of which group of the following
characteristic of which group of the following
a)
Porifera b) tenophora
Porifera b) tenophora
c)
Echinodermata d) chordate
Echinodermata d) chordate
Ans.
©
©
9) All vertebrates’ are chordates but all
chordates are not vertebrata”
chordates are not vertebrata”
10) How important is the presence of air
bladder in fish?
bladder in fish?
I)
Air bladder regulates buoyancy to float in water.
Air bladder regulates buoyancy to float in water.
ii) Animals of class
chondricthyes do not have air bladder & in the absence of air bladder, the animals
have to swim continuously to prevent sinking.
chondricthyes do not have air bladder & in the absence of air bladder, the animals
have to swim continuously to prevent sinking.
11) What are the modifications that are
observed in bird mat keep them fly?
observed in bird mat keep them fly?
Urinary
bladder is absent
bladder is absent
Presence
of one ovary.
of one ovary.
Hollow
bones.
bones.
Body
is streamlined
is streamlined
12) Could the no of eggs or young ones
produced by an oviparous & viviparous mother be equal?
produced by an oviparous & viviparous mother be equal?
It
is not possible as in oviparous animals; eggs are laid outside the body of
female. Some egg may not get the favorable condition & hatching may
degenerate. Go complete for such losses, many eggs are laid.
is not possible as in oviparous animals; eggs are laid outside the body of
female. Some egg may not get the favorable condition & hatching may
degenerate. Go complete for such losses, many eggs are laid.
In
viviparous animals the development of embryo occurs inside the another
viviparous animals the development of embryo occurs inside the another
only one or few youngones could be supported
13) Segmentation in the body is first
observed in which of the following?
observed in which of the following?
a)
Platy helminthes
Platy helminthes
b)
Asch helminthes
Asch helminthes
c)
annelid
annelid
d)
Arthropods
Arthropods
An
– Annelids
– Annelids
14) Match the following
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a) Operculum
b) parapoda
c) Scales
d) comes plates
e) Rodula
f) Hairs
g) Coenocytes
h) Gill slits
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i) Ctenophores
ii) Mollusks
iii) Porifera
iv) Reptillia
v) Annelids
vi) Cyclostomes &
Chondricthis
vii) Mammalian
viii) Ostichthyes.
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An
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a) = (viii
b) = (v)
c) = (iv)
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d) = (i)
e) = (ii)
f)) = (viii)
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g) = (iii)
h) = (vi)
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