Competitive Exams: Zoology MCQs (Practice_Test 10 of 112)
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- Chloragogen cells found in the wall of alimentary canal of earthworm are actually
- excretory in nature
- phagocytic in nature
- respiratory in nature
- digestive in function
- In Palaemon, the gills are of three types Podobranch (PO) , Arthrobranch (AR) and Pleurobranch (PL) . The number of these gills of each type, on one side is
- PO-1; AR-3; PL-5
- PO-2; AR-2; PL-5
- PO-1; AR-2; PL-5
- PO-3; AR-1; PL-4
- Aristotle՚s lantern is an interesting structure found in some echnoderms. It is known to be associated with
- locomotion
- reproduction
- circulation
- mastication
- In Rana tigrina, the centrum of ninth vertebra is different from those of ifs other vertebrae and it happens to be
- procoelous
- opisthocoelous
- heterocoelous
- acoelous
- The lower jaw in some vertebrates is not directly joined to the cranium but is only suspended by the hyomandibular bone. This type of jaw suspension is known as
- amphistylic
- craniostylic
- autodiastylic
- hyostylic
- The dental formula of man is:
- 22132213
- 12231223
- 21232123
- 21322132
- The inability of the frog to live in brackish and saline Waters is related to
- non-availability of food
- hostile environment for breeding
- problems of osmo-regulation
- problems of respiration
- In mammals, the submaxillary glands lie in the posterior part of the lower jaw and open in front of the tongue near the lower incisor teeth through a duct, called
- Duct of Ravinis
- Stensen՚s duct
- Wharton՚s duct
- Lingual duct
- What is the sequence of blood flow to and from the heart of a mammal (Where SV = sinus venosus, LA & RA = left and right auricles, LV & RV = left and right ventricles) ?
- SV-LA-LV-pulmonary arteries-lungs-pulmonary veins-RA-RV-truncus arteriosus-organs
- SV-LA-conus arteriosus LV-pulmonary arteries-lungs-pulmonary veins-RA-RV-aorta-organs
- Superior and inferior vena cavae-RA-RV-pulmonary arteries-lungs-pulmonary veins-LA-LV-truncus arteriosus-organs
- Superior and inferior vena cavae-RA-RV-pulmonary arteries-lungs-pulmonary veins-LA-LV-aorta-organs
- The correct sequence of development of mammalian erythrocytes is:
- Proetythroblast-Normoblast-Reticulocyte-Erythrocyte
- Normoblast-Proetythroblast-Reticulocyte-Erythrocyte
- Reticulocyte-Normoblast-Proerythroblast-Erythrocyte
- Reticulocyte-Proerythroblast-
Erythrocyte-Normoblast
- Which one of the following communicates with each other through the foramen of Panizzae?
- Two systemic arches
- Skull and cervical vertebra
- Cavity of medulla and fourth ventricle
- Cavities of diencephalon and cerebral hemisphere
- Which one of the following pairs is NOT correctly matched?
- Mammal
- Left fourth aortic arch present
- Birds
- Right fourth aortic arch present
- Reptiles
- The third & fourth aortic arches alone are present
- Frog
- The fourth aortic arches of both sides are present
- Bartholin՚s glands of female rabbit open into
- uterus and release a lubricant during birth of the young ones
- urinary bladder and assist in the release of urine
- vestibule and release a slimy, alkaline fluid for facilitating copulation
- fallopian tubes and release lubricants which helps to make the sperms module
- Which one of the following enzymes is NOT proteinaecious in nature?
- Renin
- Ribozyme
- Pepsin
- Trypsin
- Consider the following mechanisms of mammalian antigen destruction
- Complemental system
- Degradation of antigen
- Amplification
- Immunological recognition
The correct sequence of these is
- 4,1, 2,3
- 4,1, 3,2
- 1,4, 3,2
- 1,4, 2,3