Which of the statements regarding coelenterates is/are wrong
I. Cnidocytes are present on the tentacles and on the body
II. Diploblastic with cellular level of organisation
III. Polyp forms are free living
IV. Exhibit metagenesis
V. Polyps produce medusae sexually and medusae form polyps asexually.

Medusae form polyp sexually/asexually.

(i) Radial symmetrical (ii) Diploblastic (iii) The cellular level of organization (iv) Digestion is intracellular only (v) Exhibit two basic body forms called polyp and medusa. How many points are correct about Obelia?

Which of the following coelenterate exist in both forms polyp and medusa and exhibit metagenesis.

How many points given below are correct about Obelia? (i) Radial symmetry (ii) Diploblastic (iii) Cellular level of organization (iv) Digestion is intracellular only (v) Exhibit two basic body forms called polyp and medusa.

Mark te given statements True (T) or False (F) (i) All members of animalia are multicellular. (ii) Sponges exhibit tissue grade level of body organization (iii) A complete digestive system has two openings, mouth and anus. (iv) Annelids are pseudocoelomate animals. (v) notochord is an endodermally derived structure. (vi) all vertebrates are chordates. (vii) all chordates are vertebrates (viii) Polyps produce medusae asexually and medusae form the polyps sexually. (ix) Hooks and suckers are present in non parasitic flatworms (x) Lamprey dies after few days of spawning.

Mark te given statements True (T) or False (F) (i) All members of animalia are multicellular. (ii) Sponges exhibit tissue grade level of body organization (iii) A complete digestive system has two openings, mouth and anus. (iv) Annelids are pseudocoelomate animals. (v) notochord is an endodermally derived structure. (vi) all vertebrates are chordates. (vii) all chordates are vertebrates (viii) Polyps produce medusae asexually and medusae form the polyps sexually. (ix) Hooks and suckers are present in non parasitic flatworms (x) Lamprey dies after few days of spawning.

Which of the following statement/s regarding ecological pyramid is/are wrong? I. In most ecosystem, all the pyramids, of number, of energy and biomass are upright. II. Each trophic level has a certain mass of living material at a particular time called as the standing crop. III. The pyramid of biomass in sea is generally upright because the biomass of fishes far lower that of phytoplankton. IV. Pyramid of energy is always upright, can never be inverted. V. Energy at a lower trophic level is always less than at a higher level.