Which one of the following Proglottids in tapeworm proliferate?
From the head or scolex
From the neck
From a special region of proliferation
Any where from the body
Hydra is:
Marine radial symmetrical and diploblastic
Fresh water, biradial symmetrical and triploblastic
Fresh water, biradial symmetrical and diploblastic
Marine radial symmetrical and triploblastic
The amphids are cuticular elevations on the ventrolateral lips of Ascaris. These are mainly :
Chemoreceptors
Gustoreceptors
Olfactroreceptors
Tactoreceptors
How many segments are found in pheretima posthuma?
In increasing absorption surface
In secreting some digestive enzymes
To accommodate dorsal blood vessel
None of the above
Elephantiasis in man is caused by what?
Dracunculus (Guinea worm)
Ancylostoma (Hook worm)
Enterobious (pin worm)
Wuchereria (Filarial worm)
Starfish belongs to:
Elasmobranchii
Cetacea
Teleostomi
Asteroidea
Which type of neurons are found in pheretima ?
Adjuster
Motor
Sensory
Sensory, motor and adjuster
The bristles on the body of cockroach arise from:
Basement membrane
Epidermis
Malpighian cells
Trichogen cells
The excretory waste of Ascaris is :
Ammonia
Ornithine and uric acid
Urea
Both ammonia and urea.
Which of the following Sponges are not found?
Swe water
Brackish water
Cold water
Sandy shore
