The concept of homology can be applied to
gross structures of the body
physiological mechanisms
biochemical similarities
all of these
Correct Answer :
D. all of these
Related Questions
Temperature regulation is found in
Fish
Rat
Frog
Lizard
Glass snake is a
lizard
tree snake
nematode
fish
Which of the following pairs of specific names belongs to the same genus
histolytica and proteus
histolytica and coli
histolytica and falciparum
histolytica and rocktertil
Which is the common character between all mammals ?
They are viviparous
They are herbivores
They are carnivores
They have 7 cervical vertebrae
A spider belongs to class
Insecta
Myriapoda
Arachnida
Onychophora
The animals which are found in the soil, can fly, found on land and in water belong to the phylum
Protozoa
Parazoa
Annelida
Arthropoda
According to Whittaker, the term 'protista' includes
all types of single celled eukaryotic organisms
all types of single celled plants, animals as well as bacteria
all types of bacteria and blue green algae
all types of sinlge celled eukaryotes and prokaryotes
Structures built on a common plan, but modified during the course of evolution : to serve particular function in different animals are regarded as
homologous
analogous
both homologous and analogous
phylogenetically related
The main basis of classification of Protozaoa is
number of nuclei
shape of the organisms
method of reproduction
locomotary device
Octopus belongs to class
mollusca
cephalopoda
anneilida
arthropoda
'Systema Naturae' was written by
Carolus Linnaeus
Charles Darwin
Lamarck
Wallace
Which of the following has no segmentation?
Hydra
Earthworm
Centipede
Cockroach
A definite number of body segments is found in
leech
tapeworm
earthworm
slug
Flame cells, parenchyma and a pair of longitudinal nerve cords are found in
Taenia
Peripatus
Ascaris
Musca
Archaeopteryx called a connecting link, carried the characters, of
reptile and bird
reptile and mammals
fish and amphibia
reptile and amphibia
Whale, monkey and bat have seven cervical vertebrae. Which one has the same number of cervical vertebrae ?
Giraffe
Crocodile
Shark
Ostrich
A limbless amphibian is
Siren
Ophiosaurus
Triturus
Ichthyophis
Echis carinata is known as
coral snake
brain coral
tree snake
none of these
Which of the following groups of characters is present in all chordates in some or other stage in their life ?
Mammary glands, hairs, gill slits
Notochord, gill slits and dorsal ! tubular nervous system
Notochord, scales and dorsal tubular nervous system
Gill slits, vertebral column and notochoitl
Which of the protozoan is considered as connecting link between animals and plants ?
Entamoeba
Paramecium
Euglena
Monocystis
Viviparous animal is
shark
mud puppy
bony fish
fish
Ornithorhynchus is a
dinosaur
duck
fossil bird
monotreme mammal
Body segments are said to be homono-mous when
external segments correspond to internal segments
the body of an animal is made up of dissimilar units
all body segments along the length of the body are similar
none of these
True fishes possess gills and fins. Which of the following is not a true fish ?
Silver fish
Goldfish
Silver carp
Seahorse
Exclusively marine chelones are known as
tortoise
turtles
sea hares
none of these
One of the primary characters of chlor-date is
solid ventral nerve cord
dorsal tubular nerve cord
paired nerve cords
ganglionated nerve cord
Sepia is also known as
star fish
cartilagenous fish
jellyfish
cuttlefish
Which one of the following is a coelenterate ?
Tea cucumber
Sea urchin
Sea horse
Sea pen
A reptile with a four-chambered heart is
python
chameleon
turtle
crocodile
All worms are mainly
round
parasitic
triploblastic
segmented