12th Grade > Biology
ANIMAL KINGDOM MCQs
Total Questions : 53
| Page 6 of 6 pages
Answer: Option C. -> Dorsal nerve cord
:
C
Notochord, dorsal hollow nerve cord, paired pharyngeal gill slits and post-anal tail are the primary chordate characters found in all members of Phylum Chordata. Feathers, lungs and diaphragm are all characters found in higher chordates such as birds and mammals.
:
C
Notochord, dorsal hollow nerve cord, paired pharyngeal gill slits and post-anal tail are the primary chordate characters found in all members of Phylum Chordata. Feathers, lungs and diaphragm are all characters found in higher chordates such as birds and mammals.
Answer: Option D. -> Mollusca
:
D
Phylum Mollusca includes organisms which have a hard calcareous exoskeleton (shell), and are triploblastic. Some molluscs have an asymmetrical body plan, especially in the adult stage, although many of them are bilaterally symmetrical. Annelids and arthropods are usually bilaterally symmetrical, while echinoderms are radially symmetrical (in the adult stage).
:
D
Phylum Mollusca includes organisms which have a hard calcareous exoskeleton (shell), and are triploblastic. Some molluscs have an asymmetrical body plan, especially in the adult stage, although many of them are bilaterally symmetrical. Annelids and arthropods are usually bilaterally symmetrical, while echinoderms are radially symmetrical (in the adult stage).
Answer: Option C. -> Bilateral symmetry
:
C
Annelids and arthropods are bilaterally symmetrical, that is, the body can be divided into two identical halves only along one imaginary plane.
:
C
Annelids and arthropods are bilaterally symmetrical, that is, the body can be divided into two identical halves only along one imaginary plane.