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 general knowledge

How are the young ones of anacondas born?

  1. The female anaconda delivers its young alive

  2. The female anaconda lays eggs

  3. Male anaconda incubates the eggs

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Anacondas are viviparous, meaning the female gives birth to live young instead of laying eggs. The eggs develop inside the mother's body and the babies are born fully formed.

Multiple choice general knowledge

What animal has an average life span of three hours?

  1. Spider

  2. Moth

  3. Mayfly

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

Mayflies have remarkably short adult lifespans, with some species living only 1-3 hours as adults. Their entire adult existence is dedicated to finding a mate and reproducing - they don't even have functional mouthparts as adults. Spiders, moths, and fruit flies all have much longer lifespans.

Multiple choice general knowledge

Cockroaches can live for 5 days after their head has been cut off.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Cockroaches CAN live for approximately 5 days after decapitation - in fact, they can survive for weeks without a head. They breathe through spiracles in their body segments, not through their mouth or nose, and can survive on stored nutrients. The nervous system is distributed throughout their body.

Multiple choice general knowledge

A COCKROACH is afraid of RAT A RAT is afraid of CAT A CAT is afraid of DOG A DOG is afraid of MAN A MAN is afraid of WIFE A WIFE is afraid of COCKROACH What a loop !!!

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

This is a humorous circular chain joke creating a 'fear cycle': cockroach is afraid of rat, rat fears cat, cat fears dog, dog fears man, man fears wife, wife fears cockroach - completing the loop back to the beginning. As a True/False question asking if this cycle exists, 'True' is the marked answer because the statement presents a consistent, completed logical cycle (even though it's meant as humor, not fact). This is a joke/riddle rather than a factual question about animal behavior.

Multiple choice general knowledge

Name the young one of GrassHopper?

  1. Grasshopperling

  2. Nymph

  3. Both 1 & 2

  4. None of the Above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The young one of a grasshopper is called a nymph. Grasshoppers undergo incomplete metamorphosis, and their immature stage is called a nymph. Grasshopperling is not a valid biological term.

Multiple choice

An ant can view all objects surrounding it, what kind of eyes do ants have?

  1. Simple eyes

  2. Eyes towards the side of their heads

  3. Well developed eyes

  4. Compound eyes

  5. None of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Compound eyes means that they see through many lenses set in one eyeball, allowing sight from many directions. Many flying insects possess this characteristic. Two eyeballs  and many lenses.

Multiple choice

Black ants always move in an orderly manner, almost in a straight line. Which of the following supports this?

Directions: Read the following passage to answer the given question.

The black ant is indisputably one of the smallest visible insects on the earth. Except with the aid of a very powerful microscope, it is difficult, if not impossible, to locate the eyes, the mouth, the nostrils (if it ever has any) or any other part of its body. An air of mystery surrounds the existence of this little creature.

Have you ever taken time off your programme to watch these ants move in a row? What gives them the sense of direction, we do not know. Indeed, whoever sends them on an errand and how they even know the destination and the type of errand to run after are stories yet to be told. But they are an extremely well-organised lot.

Certainly, there are no defined routes for them on walls or trees, yet they move in an orderly manner, almost in a straight line. The beautiful thing about these insects is that, even when their line of movement is disorganized, they soon regroup and connect themselves again end to end. If in the process, one of them is killed, they quickly recognize that fact from their various positions. Then, one sees them run­ning helter-skelter with a seeming insistence on getting at the comrade to confirm its death.

When this has been done, some of them run zigzag at a tremendous speed to alert the others on the route. Soon, they disappear completely. Later, as if everything were over and forgotten, they reappear and .form a new route and continue their movement transporting food or going on one errand or the other as before. Bring your ears close to them and you hear nothing and you wonder what their means of communi­cation could be.
Perhaps, most surprising is their high sense of under­standing the weather and the climate. They are just like men in this area. They know when it is the rainy season and when the dry season comes. In fact, it is true to say that they prepare better for the future than man.

During the dry season, they file out to different places ­gathering food which they store underground. At the slightest sign of the approach of the rainy season, they all get into the hole and seal it up. Surprisingly, they re-emerge when the dry season sets in. Who tells them that the dry season has come, we do not know. You can now see the sense in the injunction, "Go to the ant, thou sluggard, learn her ways and be wise."

  1. If their line of movement is disturbed, they suddenly regroup and connect themselves again end to end.

  2. They can quickly recognise if one of them is missing from the line of movement.

  3. They go helter-skelter to trace the missing comrade.

  4. When the death of a comrade is confirmed, they alert the other ants on the route.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

 Only option one talks of how ants regroup back in a line when they are disturbed. 

Multiple choice

The black ant is regarded as one of the smallest insects on Earth and

Directions: Read the following passage to answer the given question.

The black ant is indisputably one of the smallest visible insects on the earth. Except with the aid of a very powerful microscope, it is difficult, if not impossible, to locate the eyes, the mouth, the nostrils (if it ever has any) or any other part of its body. An air of mystery surrounds the existence of this little creature.

Have you ever taken time off your programme to watch these ants move in a row? What gives them the sense of direction, we do not know. Indeed, whoever sends them on an errand and how they even know the destination and the type of errand to run after are stories yet to be told. But they are an extremely well-organised lot.

Certainly, there are no defined routes for them on walls or trees, yet they move in an orderly manner, almost in a straight line. The beautiful thing about these insects is that, even when their line of movement is disorganized, they soon regroup and connect themselves again end to end. If in the process, one of them is killed, they quickly recognize that fact from their various positions. Then, one sees them run­ning helter-skelter with a seeming insistence on getting at the comrade to confirm its death.

When this has been done, some of them run zigzag at a tremendous speed to alert the others on the route. Soon, they disappear completely. Later, as if everything were over and forgotten, they reappear and .form a new route and continue their movement transporting food or going on one errand or the other as before. Bring your ears close to them and you hear nothing and you wonder what their means of communi­cation could be.
Perhaps, most surprising is their high sense of under­standing the weather and the climate. They are just like men in this area. They know when it is the rainy season and when the dry season comes. In fact, it is true to say that they prepare better for the future than man.

During the dry season, they file out to different places ­gathering food which they store underground. At the slightest sign of the approach of the rainy season, they all get into the hole and seal it up. Surprisingly, they re-emerge when the dry season sets in. Who tells them that the dry season has come, we do not know. You can now see the sense in the injunction, "Go to the ant, thou sluggard, learn her ways and be wise."

  1. it is invisible to human eye

  2. it is difficult to locate its body parts without the help of a microscope

  3. it is impossible to locate its body parts even with the aid of a microscope

  4. an air of mystery surrounds its existence
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

 See sentence two of paragraph one.

Multiple choice

Which of the following is the most surprising thing about black ants?

Directions: Read the following passage to answer the given question.

The black ant is indisputably one of the smallest visible insects on the earth. Except with the aid of a very powerful microscope, it is difficult, if not impossible, to locate the eyes, the mouth, the nostrils (if it ever has any) or any other part of its body. An air of mystery surrounds the existence of this little creature.

Have you ever taken time off your programme to watch these ants move in a row? What gives them the sense of direction, we do not know. Indeed, whoever sends them on an errand and how they even know the destination and the type of errand to run after are stories yet to be told. But they are an extremely well-organised lot.

Certainly, there are no defined routes for them on walls or trees, yet they move in an orderly manner, almost in a straight line. The beautiful thing about these insects is that, even when their line of movement is disorganized, they soon regroup and connect themselves again end to end. If in the process, one of them is killed, they quickly recognize that fact from their various positions. Then, one sees them run­ning helter-skelter with a seeming insistence on getting at the comrade to confirm its death.

When this has been done, some of them run zigzag at a tremendous speed to alert the others on the route. Soon, they disappear completely. Later, as if everything were over and forgotten, they reappear and .form a new route and continue their movement transporting food or going on one errand or the other as before. Bring your ears close to them and you hear nothing and you wonder what their means of communi­cation could be.
Perhaps, most surprising is their high sense of under­standing the weather and the climate. They are just like men in this area. They know when it is the rainy season and when the dry season comes. In fact, it is true to say that they prepare better for the future than man.

During the dry season, they file out to different places ­gathering food which they store underground. At the slightest sign of the approach of the rainy season, they all get into the hole and seal it up. Surprisingly, they re-emerge when the dry season sets in. Who tells them that the dry season has come, we do not know. You can now see the sense in the injunction, "Go to the ant, thou sluggard, learn her ways and be wise."

  1. They can always maintain a straight line of movement.

  2. During the dry season they file out to different places to gather food.

  3. They have a highly developed sense of understanding of the weather and climate.

  4. Black ants re-emerge from their hole when the dry season sets in.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

 See sentence one of paragraph five.