NEET TRUE (T) OR FALSE (F)
1.The characteristic of class Reptilia are, their body is covered by dry and cornified skin, epidermal scales or scutes, no external ear openings and creeping or crawling mode of locomotion.
2. Diverse mode of respiration is seen in arthropods and amphibians as respiratory organs are gills, book gills, book lungs or tracheal system for arthropods while amphibians respires through skin, gills and lungs.
3. Fishes, amphibians and reptiles are poikilothermous or cold-blooded-animals i.e they lack the capacity to regulate their body temperature.
4. Functional post-anal tail, homoiothermy, paired limbs and internal fertilization are common characteristics among crocodile, crow and kangaroo.
5. Angel fish, saw fish, dog fish and hagfish are true aquatic fishes with streamlined body and direct development.
6. The digestive track of reptiles and birds has additional chambers, the crop and gizzard for the storage and digestion of food.
7. Flying fish have four pairs of gills without an operculum which is necessary to regulate buoyancy.
8. Fully ossified endoskeleton and pneumatic bones along with four- chambered heart are the characteristics of homoiothermic Aves.
9. Male great white shark bears claspers on pectoral fins that assist in internal fertilization of this oviparous fish.
10. Respiration is by lungs and air sacs connected to lungs supplement respiration is seen in Aves.
11. Torpedo possesses poison sting and have a swim constantly to avoid sinking due to lack of air bladder.
12. The most unique mammalian characteristics are the presence of mammary glands and hair on the skin.
13. In Scoliodon, mouth is located terminally and possess backwardly directed placoid scales as modified teeth.
14.The characteristic feature of Aves is the presence of feather and most of them can’t fly except flightless birds.
15. Mammals commonly exhibit homiothermy and viviparity without any exception.
16. In the exclusively marine urochordates, notochord extends from head to tail region and is persistent throughout their life.
17. The members of phylum Vertebrata possess notochord during the embryonic period, replaced by a bony or cartilaginous vertebral column in the adult.
18. All vertebrates are chordates but all chordates are not vertebrates.
19. Camels are born with a hump.
20. Horses and rabbits are can’t vomit.
ANSWER
- (T) 2. () 3. (T) 4. (F) 5. (F) 6. (F) 7. (F) 8. (T) 9. (F) 10. (T)
11. (F) 12. (T) 13. (F) 14. (F) 15. (F) 16. (F) 17. (F) 18. (T) 19. (T) 20. (T)
QUOTE:- “IF YOU WANT TO TEST A MAN CHARACTER, GIVE HIM POWER.”
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