- Study carefully the given flowchart and fill in the blanks
(A), (B), (C), (D) and (E).
A B C D E
(a) Cellular Bilateral Radial Pseudo- Coelomates
level symmetry symmetry coelomates
(b) Cellular Radial Bilateral Coelomates Pseudo-
level symmetry symmetry coelomates
(c) Cellular Bilateral Radial Coelomates Pseudo-
level symmetry symmetry coelomates
(d) Cellular Radial Bilateral Pseudo- Coelomates
level symmetry symmetry coelomates
- In most simple type of canal system of Porifera, which of
the following ways exhibit water flow?
(a) Ostia → Spongocoel → Osculum → Exterior
(b) Spongocoel → Ostia → Osculum → Exterior
(c) Osculum → Spongocoel → Ostia → Exterior
(d) Osculum → Ostia → Spongocoel → Exterior
- Amphibians share with reptiles all of the following
characters except
(a) ventral heart
(b) external fertilisation and indirect development
(c) dioecious, oviparous
(d) cold blooded or poikilotherms.
- Which of the following is a hemichordate?
(a) Herdmania (b) Doliolum
(c) Balanoglossus (d) Branchiostoma
- Prototherian mammals like platypus are good examples
for
(a) viviparous type (b) oviparous
(c) ovoviviparous type (d) parthenogenic type.
- Identify the figures A, B, C and D and select the correct
option.
(a) A- liver fluke; B-Male roundworm; C-Hirudinaria;
D-Nereis
(b) A-liver fluke; B-Female roundworm; C-Hirudinaria;
D-Nereis
(c) A-liver fluke; B-Male roundworm; C-Nereis;
D-Hirudinaria
(d) A-liver fluke; B-Female roundworm; C-Nereis;
D-Hirudinaria
True or False
- Coelenterates have organ system level of body
organisation.
- Roundworms, annelids and molluscs are protostomes.
- Porifers and cnidarians are diploblastic animals as
their embryos have two germinal layers, ectoderm and
endoderm.
- Pseudometamerism or false segmentation is characteristic
of Phylum Annelida.
- Internal fertilisation takes place in birds.
- In indirect development, the young ones do not resemble
the adults.
- In spiders, exchange of gases takes place through book
lungs.
- Chitinous cuticle forms the exoskeleton in arthropods.
- Cliona is commonly, called as “The Venus’ flower basket”.
- Rod shaped bodies called rhabdites are present in the
epidermal cells of Platyhelminthes.
Match The columns
- Match Column I with Column II.
Column I Column II
A. Respiratory pigment (i) Frog
haemocyanin
B. Buccopharyngeal (ii) Pila
respiration
C. Renette cell (iii) King crab
D. Book gills (iv) Ascaris
E. Connules (v) Physalia
F. Dactylozooids (vi) Spongia
- Match Column I with Column II. (There can be more than
one matches for items in Column I)
Column I Column II
A. Mouth circular (i) Petromyzon
and jawless
B. Placoid scales (ii) Scoliodon
C. uropygial glands (iii) Struthio
D. Marsupium (iv) Didelphis
or brood pouch
E. Presence of pinna (v) Chimaera
(vi) Myxine
(vii) Columba
(viii) Rattus
(ix) Macropus
(x) Cavia
