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ANIMAL KINGDOM Quiz-16

Dear Readers,

NEET is the most famous and important medical entrance examination held in our country. This exam is an objective type, an offline test which includes 4 sections namely– Physics, Chemistry, Botany, and Zoology. The maximum marks that can be scored are 720 marks and have 180 questions.

About half of the paper consists of questions from Biology, as the NEET exam essentially focuses on capacitating students to go for seats in medical courses. One of the most significant and crucial sections in the NEET exam is of Biology. It comprises of theories, descriptions, discoveries, diagrams, definitions, explanations of differences, and relations. The majority of the topics covered in the NEET syllabus are from the NCERT syllabus of Class 11 & 12 and other related sources become part of the rest of the syllabus.

Clear Exam curates a list of articles selected by professionals who recommend the highly vital topics for NEET exams. The table below takes you directly to the respective topic where the in-depth article and the MCQs are available for an easy and productive learning experience. Prior to solving NEET question papers or practicing mock tests, you must ensure to study the basic concepts in NEET and practice a few sample questions related to this exam. Students will be covered for all their studies as the topics are available from basics to even the most advanced. 


Q1. Choanocyte in an ascon type of canal system, is lined by:
  •  Porocyte
  •  Incurrent
  •  Apopyle
  •  Spongocoel
Solution
Canal system of Leucosolenia is of ascon type. It is the simplest type canal system found in sponges, in this ostia, spongocoel and osculum together form canal system.

Q2. The enteronephric nephridia in Pheretima consists which of the following parts given below?
1.A nephrostome
2.Terminal nephridial duct
3.Septal excretory canal
4.Supra intestinal excretory canal
5.Long thick walled excretory canal
  •  2,5
  •  1,3,4,5
  •  3,4,5
  •  1,3,5
Solution
Enteronephric enphridia are so called because these opens into alimentary canal. These occurred as paired tufts on either side of pharynx and oesophagus in the 4th, 5th and 6th segment. It consists of terminal nephridial duct and long thick walled excretory canal.

Q3. Which of the following is true of Aves?
  •  They are poikilotherms and have a three chambered heart
  •  Tiny pebbles eaten by some birds and are used in crushing
  •  They have 10 pairs of cranial nerves
  •  All the above
Solution
Aves have two additional chambers to the alimentary canal: the crop and the gizzard. Birds eat tiny pebbles that lodge in the gizzard and help the muscular gizzard in crushing food. Birds have 12 pairs of cranial nerves.

Q4. Class-Crustacea have the following features:
  •  Tracheae and Malpighian tubules
  •  Tracheae and green glands
  •  Book gills and coxal glands
  •  Gills and antennal glands
Solution
Animals belonging to class-Crustacea breathe through the body surface or gills and excretion takes place through autumnale gland.


Q5. Arms are absent in:
  •  Sea urchin
  •  Sea cucumber
  •  Both (a) and (b)
  •  None of these
Solution
Arms are absent in the class-Echinoidea (e.g., sea urchins and sand dollars) and holothuroidea (e.g., sea cucumbers).

Q6. Which of the following statements are correct?
I.Venom of cobra is neurotoxic.
II.Venom of sea snake is neurotoxic.
III.Venom of viper is haemotoxic.
  •  I, II and III
  •  I and III
  •  I and II
  •  II and III
Solution

Arms are absent in the class-Echinoidea (e.g., sea urchins and sand dollars) and holothuroidea (e.g., sea cucumbers).



Q7. An animal without anus is :
  •  Unio
  •  Pheretima
  •  Fasciola
  •  Periplaneta
Solution
Blind sac body plan is exhibited by some eumetazoans like cnidarians (e.g., Hydra) and flateworms (e.g., Fasciola) in which, the body of animal has a single opening which acts as both mouth and anus.

Q8. Right aortic arch is present in:
  •  Reptiles only
  •  Mammals only
  •  Birds only
  •  Both (b) and (c)
Solution
Presence of right aortic arch is characteristic to all birds.

Q9. Mosquito receive air through:
  •  Flagellam
  •  Cilia
  •  Pedicel
  •  None of these
Solution
None of these

Q10. Ecdysone is produced by:
  •  Prothoracic gland
  •  Corpora cardiaca
  •  Corpora allata
  •  Abdominal gland
Solution
The moulting hormone of the prothoracic glands, named ecdyson, was isolated in a crystalline form in 1954 by Butenandt and Karlson. Ecdyson is a steroid hormone, known to trigger moulting it acts on the tissue to promote all the changes characterizing a moult.

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