Start learning →

AP Intermediate 1st Year Structural Organisation in Animals — practice questions

Explore 50 free Structural Organisation in Animals questions in AP Intermediate 1st Year Biology. Open each question or exercise to read its content, reference answers and available explanation.

Practise Structural Organisation in Animals with Quill →

Structural Organisation in Animals questions and exercises with answers

Showing questions 1–30 of 50.

The common Indian frog species isRead the answer and worked solution →Frogs are poikilotherms because theyRead the answer and worked solution →Frog skin is kept moist mainly byRead the answer and worked solution →The eyes of a frog are protected in water byRead the answer and worked solution →Frog heart hasRead the answer and worked solution →Frogs respire in water byRead the answer and worked solution →Sound-producing vocal sacs in frogs are present inRead the answer and worked solution →The structural and functional unit of frog kidney isRead the answer and worked solution →Frog male reproductive organ isRead the answer and worked solution →Fertilisation in frogs isRead the answer and worked solution →The respiration through skin in frogs is calledRead the answer and worked solution →In a frog the alimentary canal is short because frogs areRead the answer and worked solution →The buccal cavity of a frog opens into the oesophagus through theRead the answer and worked solution →Bile in the frog is secreted by and stored inRead the answer and worked solution →The bilobed tongue of frog is used toRead the answer and worked solution →The chamber that receives blood from major veins (vena cava) in the frog heart is theRead the answer and worked solution →Conus arteriosus in the frogRead the answer and worked solution →Frogs are classified as ureotelic because theyRead the answer and worked solution →The brain of frog is enclosed in a bony case calledRead the answer and worked solution →The frog brain consists of three regions:Read the answer and worked solution →Ten pairs of cranial nerves arise from the frog brain. In mammals the number isRead the answer and worked solution →The female frog can lay how many ova in one spawning?Read the answer and worked solution →Hepatic portal system of frog carries blood fromRead the answer and worked solution →Renal portal system of frog carries blood fromRead the answer and worked solution →The vasa efferentia in male frogs areRead the answer and worked solution →Bidder's canal in male frogs isRead the answer and worked solution →The mid-brain of the frog is characterised byRead the answer and worked solution →The cloaca of the frog serves as the common chamber forRead the answer and worked solution →Mesorchium in the male frog isRead the answer and worked solution →Frog development includesRead the answer and worked solution →

Worked practice questions

The common Indian frog species is

  1. Rana esculenta of Phylum Chordata
  2. Bufo bufo of Phylum Chordata only
  3. Hyla arborea of Phylum Chordata
  4. Rana tigrina of Phylum Chordata
Show answer and solution

Correct answer: D. Rana tigrina of Phylum Chordata

Rana tigrina (Indian bullfrog) is the most common frog of India. It belongs to Class Amphibia of Phylum Chordata. It is cold-blooded (poikilotherm), exhibits aestivation in summer and hibernation in winter.

Open this question →

Frogs are poikilotherms because they

  1. Have body temperature varying with environment
  2. Maintain a fixed internal temperature always
  3. Generate heat from brown fat tissue
  4. Sweat to cool their body in summer
Show answer and solution

Correct answer: A. Have body temperature varying with environment

Poikilotherms (cold-blooded) cannot maintain a constant internal temperature it varies with the ambient temperature. Frogs survive extremes by aestivation (summer sleep) and hibernation (winter sleep) in deep burrows.

Open this question →

Frog skin is kept moist mainly by

  1. Oil from the sebaceous follicles
  2. Sap from the dermal capillaries
  3. Mucus secreted by skin glands
  4. Sweat from the eccrine glands
Show answer and solution

Correct answer: C. Mucus secreted by skin glands

Mucus glands in frog skin keep the surface moist and slippery. Frogs do not drink water; they absorb it through the skin. The skin is also highly vascular, supporting cutaneous respiration in water.

Open this question →

How to practise

  1. Choose a Structural Organisation in Animals question and try to work out your answer.
  2. Open the question to check the correct answer and read its worked solution.
  3. Continue in the app for bite-sized lessons, explanations and review with Quill. You can start without creating an account.

Put it into practice

Continue with Structural Organisation in Animals practice for AP Intermediate 1st Year. Read explanations as you go. No signup form needed to start.

Practise Structural Organisation in Animals →

More Biology topics

The Living World & Biological ClassificationPhotosynthesis in Higher PlantsAnimal KingdomBody Fluids and CirculationBreathing and Exchange of GasesCell Cycle and Cell DivisionLocomotion and MovementNeural Control and Chemical Coordination