The excretory structures of flat worms / Taenia are _______________.
Flame cells
Protonephridia
Malpighian tubules
Green glands
Wish bone of birds is formed from ______________.
skull
pelvic girdle
hindlimbs
clavicles
Adult culex and Anopheles can be distinguished with the help of _________________.
mouth parts / colour
sitting posture
antennae / wings
feeding habits
Pneumatic bones are expected to be found in ________________.
pigeon
house lizard
frog's tadpole
flying fish
Skin acts as a respiratory organ in _____________.
lizards
birds
primitive mammals
frog
In which of the following notochord is present in embryonic stage?
All chordates
Some chordates
Vertebrates
Non - chordates
What is true about Taenia saginata?
Life histroy has pig as intermediate host
There are two large suckers on scolex
Rostellar hooks are absent
Rostellum has double circle of hooks
During its life cycle, Fasciola hepatica (liver fluke) infects its intermediate host and primary host at the following larval stages respectively _______________.
metacercaria and cercaria
miracidium and metacercaria
redia and miracidium
cercaria and redia
Which one of the following is not a living fossil?
King crab
Sphenodon
Archaeopteryx
Peripatus
