'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.
In which type of reactions related to plant photosynthesis peroxisomes are involved?
Glycolate cycle
Calvin cycle
Bacterial photosynthesis
Glyoxylate cycle
Lichens are described as indicator of
air pollution
water pollution
soil pollution
agriculture productivity
