Biology
Invertebrate Zoology
799 Questions
Invertebrate zoology covers the anatomical and physiological characteristics of animals without backbones, focusing heavily on insects, earthworms, and other arthropods. These questions explore structural components like respiratory organs and excretory systems. This topic forms a crucial part of the biology section in various competitive exams.
Cockroach anatomyEarthworm organsInsect ordersRespiratory organsExcretory organs
Invertebrate Zoology Questions
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Biting and chewing
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Piercing and sucking
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Siphoning
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Sponging
A
Correct answer
Explanation
Mouth parts of cockroach are based upon its eating habits and therefore biting and chewing type.
C
Correct answer
Explanation
Clitellum is a thickened glandular and non-segmented section of the body wall near the head in earthworms and leeches
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Clitellum
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Cephalothorax
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Thorax
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Metathorax
A
Correct answer
Explanation
Refer to question no. 13.
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Arthropod
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Insect
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Invertebrate
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Arachnid
C
Correct answer
Explanation
Invertebrate is a subphylum of kingdom Animalia.
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Salivary gland of larva
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Cuticle of adult
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Cuticle of larva
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Salivary gland of adult
A
Correct answer
Explanation
Silkworm silk is the product of Salivary gland of larva.
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Lungs
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Nostrils
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Skin
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Gills
C
Correct answer
Explanation
Earthworm is not a highly complex organism to have gills, lung or nostrils for respiration. Its cells are in contact with the absorphere directly so breathing in earthworm takes place through skin.
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With the help of muscles
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With the help of slimy secretions
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With the help of tiny bristles
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With the help of bones
C
Correct answer
Explanation
The body of earth worm is soft as it does not have bones. It moves by the peristaltic action of muscles and affixes itself to the ground with the help of large number of tiny bristles. Also, its body secretes a slimy substances to help the movement.
A
Correct answer
Explanation
Cockroach is an animal with 3 pairs of legs. It can walk with the help of its legs. It can climb up the walls and can also undergo short flights due to presence of wings which are attached to breast.
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Climbing
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Walking
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Flying
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Creeping
D
Correct answer
Explanation
Cockroach is an animal with 3 pairs of legs. It can walk with the help of its legs. It can climb up the walls and can also undergo short flights due to presence of wings which are attached to breast.
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bed bugs
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grasshoppers
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butterflies
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silver fish
C
Correct answer
Explanation
Complete metamorphosis is found in butterflies.It is insect development in which egg, larval, pupal, and adult stages occur, each differing greatly in morphology.
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Anticoagulants
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Abundant asexual reproduction
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Cellular level of organisation
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Absence of sexual phase
A
Correct answer
Explanation
Anticoagulants (antithrombics) are a class of drugs that work to prevent the coagulation (clotting) of blood. Such substances occur naturally in leeches and blood-sucking insects.
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Man
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Insects/Cockroach
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Reptiles
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Ayes
B
Correct answer
Explanation
The open circulatory system is common to molluscs and arthropods. Open circulatory systems (evolved in crustaceans, insects, mollusks and other invertebrates) pump blood into a hemocoel with the blood diffusing back to the circulatory system between cells. Blood is pumped by a heart into the body cavities, where tissues are surrounded by the blood.
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Two types of eyes
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One type of eyes
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Three types of eyes
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None of the above
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Bladder worm
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Hexacanth
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Maggot
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Rhabdiform larva
D
Correct answer
Explanation
early developmental larval stages (first and second) of soil-borne nematodes such as Necator, Ancylostoma, and Strongyloides, which precede the infectious third-stage filariform larva.