Kingdom Animalia is characterised by
direct dependence on autotrophs
indirect dependence on autotrophs
absence of chlorophyll
absence of cell wall.
Which of the following is a correct match
Frog - External ears
Earthworm - Muscular gizzard, typhlosole
Human - Fat globule, 10 pairs of cranial nerves
Cockroach - Chilopoda
Assertion: Blood in cockroach is colourless haemolymph with no respiratory pigment.
Reason: Respiration in cockroach occurs through diffusion in haemolymph.
If both assertion and reason are true and reason is the correct explanation of assertion
If both assertion and reason are true but reason is not the correct explanation of assertion
If assertion is true but reason is false
If both assertion and reason are false.
C.
If assertion is true but reason is false
The colourless blood or haemolymph of cockroach has a clear plasma and numerous white corpuscles called haemocytes. Being devoid of any respiratory pigment, it does not serve for gaseous exchange.
During the life-cycle, Fasciola hepatica (liver fluke) infects its intermediate host and primary host at the following larval stages respectively
redia and miracidium
cercaria and redia
metacercaria and cercaria
miracidium and metacercaria.
Which of the following does not come under the Class Mammals?
Flying fox
Hedgehog
Manatee
Lamprey
Assertion: Cephalization is advantageous to an animal.
Reason: It improves the appearance of the animal
If both assertion and reason are true and reason is the correct explanation of assertion
If both assertion and reason are true but reason is not the correct explanation of assertion
If assertion is true but reason is false
If both assertion and reason are false.
Assertion : Torison can be seen in ctenidium.
Reason : Ctenidium acts as the respiratory organ.
If both assertion and reason are true and reason is the correct explanation of assertion
If both assertion and reason are true but reason is not the correct explanation of assertion
If assertion is true but reason is false
If both assertion and reason are false
Which one of the following animals is correctly matched with its one characteristic and the taxon
Animal | Characteristic | Taxon |
Millipede | Ventral nerve cord | Arachnida |
Duckbill platypus | Oviparous | Mammalia |
Silverfish | Pectoral and pelvic fin | Chordata |
Sea anemone | Triploblastic | Cnidaria |
All mammals without any exception are characterised by
viviparity and biconcave red blood cells
extra-abdominal testes and a four chambered heart
heterodont teeth and 12 pairs of cranial nerves
a muscular diaphragm and milk producing
glands.
Which one of the following pairs of the kind of cells and their secretion is correctly matched
Oxyntic cells | a secretion with pH between 2.0 and 3.0 |
Alpha cells of islets of Langerhans | secretion that decreases blood sugar level |
Kupffer cells | a digestive enzyme that hydrolyses nucleic acids |
Sebaceous glands | a secretion that evaporates for cooling |