The organism that is free living in the bottom of the streams and ponds is anchored. Hydra is a free living organism which is found in temperate regions .Hydra can be found in a variety of freshwater habitats.
They are sessile and live attached to the aquatic vegetation, stones and submerged woods.
They feed on small insects and small zooplankton in the water bodies. They are less than 15 mm in height and are usually green in color.
Answer:An ultra-marathon can also be defined as a running competition ... World records in female elite and age group athletes in distance-limited races, from ... as skeletal muscle mass, body fat and running training were examined in ... for a long time, and do not make any tempo changes