Biology

Invertebrate Zoology

634 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

Multiple choice

In cockroaches, air enters the body through

  1. Lungs

  2. Gills

  3. Spiracles

  4. Skin
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Spiracles - A cockroach has small openings on the sides of its body. Other insects also have similar openings. These openings are called spiracles

Multiple choice

Mouth parts of cockroach are of type

  1. Biting and chewing

  2. Piercing and sucking

  3. Siphoning

  4. Sponging
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Mouth parts of cockroach are based upon its eating habits and therefore biting and chewing type.

Multiple choice

Silkworm silk is the product of

  1. Salivary gland of larva

  2. Cuticle of adult

  3. Cuticle of larva

  4. Salivary gland of adult
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Silkworm silk is the product of Salivary gland of larva.

Multiple choice

How does an earthworm fix itself to the ground?

  1. With the help of muscles

  2. With the help of slimy secretions

  3. With the help of tiny bristles

  4. With the help of bones
Reveal answer Fill a bubble to check yourself
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.

Multiple choice

How many pairs of legs are observed in a cockroach?

  1. 3

  2. 4

  3. 2

  4. 5
Reveal answer Fill a bubble to check yourself
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.

Multiple choice

Which type of movement is not shown by a cockroach?

  1. Climbing

  2. Walking

  3. Flying

  4. Creeping
Reveal answer Fill a bubble to check yourself
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.

Multiple choice

Which of the following statements is incorrect?

  1. Outer skeleton of cockroach is made up of different joint units.

  2. In birds, the bony parts of the hind limbs are modified as wings.

  3. Snakes have a long back bone.

  4. Fishes have stream lined body.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Cockroaches have outer skeleton made of different jointed units. Snakes have a long single back bone. Fishes have stream lined body to swim well in water. In birds, the forelimbs are modified as wings.

Multiple choice

Complete metamorphosis is found in

  1. bed bugs

  2. grasshoppers

  3. butterflies

  4. silver fish
Reveal answer Fill a bubble to check yourself
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.