Kingdom animalia
General features of kingdom animalia
The animal possess several general features, which are
taken together to distinguish them from the members of
other kingdoms.
i) They are multicellular organisms which do not
possess chlorophyll.
ii) They are eukaryotic organisms.
iii) Cell wall is absent.
iv) Mode of nutrition is heterotrophic i.e. they
depend on other organisms for food.
v) They have muscle cells due to which they have the
capability to contract and relax the body parts.
vi) Reproduction is sexual. However, asexual
reproduction is also found in lower forms.
vii) During development, multicellular embryo is
formed from the zygote.
viii) They require oxygen for aerobic respiration.
ix) Organs are internal.
x) They have nervous system, respiratory,
circulatory, excretory etc.
, Basis of classification of kingdom animal with examples.
In spite of differences in structure and form of different
animals, there are fundamental features common to
various individuals in relation to the arrangement of
cells, body symmetry, and nature of coelom, pattern of
digestive, circulatory or reproductive systems. These
features are used as the basis of animal classification and
some of them are discussed below.
1. Notochord
It is made up of 2 words i.e. noton + chord. In which
noton means back and chord means string.
It is stiff rode like structure and made up of tightly
packed vacuolated cell.
Types: - there are two types of notochord
i) Chordate
ii) Non chordate
General features of kingdom animalia
The animal possess several general features, which are
taken together to distinguish them from the members of
other kingdoms.
i) They are multicellular organisms which do not
possess chlorophyll.
ii) They are eukaryotic organisms.
iii) Cell wall is absent.
iv) Mode of nutrition is heterotrophic i.e. they
depend on other organisms for food.
v) They have muscle cells due to which they have the
capability to contract and relax the body parts.
vi) Reproduction is sexual. However, asexual
reproduction is also found in lower forms.
vii) During development, multicellular embryo is
formed from the zygote.
viii) They require oxygen for aerobic respiration.
ix) Organs are internal.
x) They have nervous system, respiratory,
circulatory, excretory etc.
, Basis of classification of kingdom animal with examples.
In spite of differences in structure and form of different
animals, there are fundamental features common to
various individuals in relation to the arrangement of
cells, body symmetry, and nature of coelom, pattern of
digestive, circulatory or reproductive systems. These
features are used as the basis of animal classification and
some of them are discussed below.
1. Notochord
It is made up of 2 words i.e. noton + chord. In which
noton means back and chord means string.
It is stiff rode like structure and made up of tightly
packed vacuolated cell.
Types: - there are two types of notochord
i) Chordate
ii) Non chordate
