Which of the following statement is incorrect about the phylum Hemichordata ?
(A) They are bilaterally symmetrical, triploblastic and coelomate animals.
(B) Circulatory system is open type.
(C) Excretory organ is proboscis gland
(D) Fertilization is internal and development is indirect

Read the following statements: a. This phylum consists of a small group of worm like marine animals b. They are bilaterally symmetrical, triploblastic and coelomate animals c. The body is cylindrical d. Respiration takes place through gills. We are talking about the phylum

Which of the following set of animals are triploblastic, true coelomates with open type circulatory system ?

Which one of the following statements is incorrect? (A) Mesoglea is present in between ectoderm and endoderm in Obelia (B) Asterias exhibits radial symmetry (C) Fasciola is a pseudocoelomate animal (D) Taenia is a triploblastic animal

Which of the following statements are correct about barbiturates (a) Hyphotics or sleep producing agents (b) These are tranquilizers (c ) Non-narcotic analgesics (d) Pain reducing without disturbing the nervous system

Read the following statements. (a) Metagenesis is observed in Helminthes (b) Echinoderms are triploblastic and coelomate animals (c) Roundworms have organ system level of body organization (d) Comb plates present in ctenophore help in digestion (e) Water vascular system is characteristic of Echinoderms. Choose the correct answer from options given below.

Which one of the following statements is correct about allotropes of an element? -A) They have the same chemical reactivity B) They have the same electrical conductivity C) They have the same heat of combustion D) All the above statements are incorrect

Differentiate between (a) Open circulatory system and closed circulatory system. (b) Oviparous and viviparous characteristic. (c ) Direct development and Indirect development.

Read the following statements : i. Open type circulatory systems are found in Arthropods. ii. Pseudocoelomates are bilaterally symmetrical. iii. Most of the sponges are radially symmetrical. iv. Platyhelminthes have a tissue level of organization. How many of the above statements are incorrect?

Read the following statemens carefully: (a). Theya re triplobastic (b). Alimentary canal is complete with a well-developed muscular pharynx (c). An excretory tube removes body wastes from the body cavity through excretory pore (d). They are dioecious (e). Fertilisation is internal Above features belong to which phylum?