Multiple Choice Questions'Water vascular' system is found in
sea-anemone
sea-pen
sea-cucumber
sea-horse
C.
sea-cucumber
The water vascular system is a hydraulic system used by echinoderms such as starfish, sea cucumber, etc, for locomotion, food and water transportation and respiration. The system is composed of canals connecting numerous tube feet. They move by alternately contracting muscles that force water into the tube feet, causing them to extend and push against the ground, then relasing to allow the feet to retract.
Which of the following animal belongs to class-Crustacea?
Cockroach
Cyclops
Grasshopper
Mosquito
the scientific name of Asian Tiger Mosquito
Aedes aegypti
Aedes albopictus
Aedes taeniorhynchus
Aedes albolineatus
Which of the following is not correctly matched?
Sycon - Canal system
Star fish - Radial symmetry
Ascaris - Flame cell
Prawn - Haemocoel
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