[" Circulatory system is absent in "],[" (1) Annelids "],[" (2) Arthropods "],[" (3) Flatworms "],[" (4) Cephalopods "]

Circulatory system of arthropods is

Which type of circulatory system is present in annelids ?

Open circulatory system is present in : (A) Arthropods (B) Annelids (C) Chordates (D) Molluscs

Excretory system is absent in (a) Echinodermata (b) Mollusca (c) Annelids (d) Arthropods

Open circulatory system is present in Arthropods (Insects) Annelids Chordates Molluscs

Give reasons for the following. 1 . Respiratory and circulatory system are absent in parasitic platyhelminthes and Aschelminthes. 2. Arthropods are the most successful invertebrate. 3. Body of endoparasites are covered with cuticle.

Consider the following statements (A-C) each with two blanks . (i) Jellyfish exhibits (A) symmetry whereas cutte fish exhibits (B) symmetry . (ii) Incomplete gut is present in (C ) whereas complete gut is present in (D) (iii) Closed circulatory is present (E ) whereas open circulatory system is present in (F) (iv) Flatworms are (G) whereas roundworms are (H) Which one of the following options , gives the correct fill - ups for both the blank numbers one of the above statements ?

Consider the following statements (i-iv) each with two blanks . (i) Jellyfish exhibits (A) symmetry whereas cuttle fish exhibits (B) symmetry . (ii) Incomplete gut is present in (C ) whereas complete gut is present in (D) (iii) Closed circulatory is present (E ) whereas open circulatory system is present in (F) (iv) Flatworms are (G) whereas roundworms are (H) Which one of the following options , gives the correct fill - ups for both the blank numbers one of the above statements ?