Tag: zoology

Quizzes (289) Questions (5869)

Questions Related to zoology

Multiple choice zoology structural organization in living organisms specialized cells in animals tissues and types of tissues levels of organisation in animals

Cell body is known as

  1. Axon

  2. Cyton

  3. Neuron

  4. None of he above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Neurons are made up of three parts: cell body, dendrites, and axon. The cell body is also known as cyton consists of nucleus and cytoplasm. Dendrites are short branches arising from cell body whereas axon is a long cylindrical projection of uniform thickness.
So, the correct answer is 'Cyton'.
Multiple choice zoology structural organization in living organisms specialized cells in animals tissues and types of tissues levels of organisation in animals

The voluntary muscles are known as

  1. Striated muscles

  2. Cardiac muscles

  3. Unstriated muscles

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Striated muscles or skeletal muscles are the most abundant type of muscle fibers found attached to the bones. They are multinucleated and voluntary in nature. They help in the movement of different parts of the body.
So, the correct answer is 'Striated muscles'.
Multiple choice zoology structural organization in living organisms specialized cells in animals tissues and types of tissues levels of organisation in animals

Which of the following characteristics can be related to cardiac muscles?

  1. They are striated.

  2. They are involuntary muscles.

  3. They are less prone to fatigue.

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
The cardiac muscles are present on the wall of the heart. These muscles are striated muscles but involuntary in nature. They are under the control of the autonomic nervous system. Due to the presence of large number of mitochondria, they have the continuous supply of oxygen and hence these muscles are less prone to fatigue.
So the correct answer is 'All of the above'.
Multiple choice zoology structural organization in living organisms specialized cells in animals tissues and types of tissues levels of organisation in animals

The squamous epithelium is mainly involved in

  1. Protection

  2. Absorption

  3. Secretion

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

Squamous epithelium is a type of epithelium tissue. The cells of this tissue are thin, flat and closely packed. These are found in cavities of mouth, oesophagus, alveoli and blood vessels. This tissue gives protection against mechanical injury and also blocks the entry of pathogens or germs. 

So, the correct option is 'Protection'.

Multiple choice zoology structural organization in living organisms specialized cells in animals tissues and types of tissues levels of organisation in animals

Choose the correct answers from the alternatives given.
Which one of the following is not a characteristic of animals?

  1. Heterotrophic

  2. Diplontic life cycle

  3. Have contracting fibres

  4. Single cells or colonial
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

All animals are eukaryotic, multicellular organisms, and most animals have complex tissue structure with differentiated and specialized tissue. Animals are heterotrophs; they must consume living or dead organisms since they cannot synthesize their own food and can be carnivores, herbivores, omnivores, or parasites.

So, the correct option is 'Single cells or colonial'.

Multiple choice zoology structural organization in living organisms specialized cells in animals tissues and types of tissues levels of organisation in animals

The bundle of axon is known as

  1. Nerve

  2. Cyton

  3. Axon

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Axon is a part of nerve cells or neurons. The bundle of the axon is called a nerve in the peripheral nervous system while it is called a tract in the central nervous system. 
So, the correct answer is 'Nerve'
Multiple choice frog - control and coordination system frog animal diversity - ii (phylum: chordata) organ and organ systems in animals zoology

A frog with crushed brain is pinched on the leg. The leg is drawn away. It is

  1. Automatic motor response

  2. Neurotransmitter induced response

  3. Conditional reflex

  4. Simple reflex
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The withdrawal of a leg in response to a stimulus in a brain-crushed frog is a classic example of a simple reflex, which is mediated by the spinal cord and does not require higher brain centers.

Multiple choice frog - control and coordination system frog animal diversity - ii (phylum: chordata) organ and organ systems in animals zoology

What is true about buccophayngeal respiration in frog-

  1. Sternohyal muscle contracted-Buccal air pumped into lungs. petrohyal muscle cotractedpulmonary air pumped out.

  2. Sternohyal muscle contracted-atmospheric air sucked in, petrohyal muscle contract-Buccal air pumped out

  3. Sterohyal muscle relaxed-atmospheric air pumped out, petrohyal muscle contracted-Buccal air pumped into lungs

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

In buccopharyngeal respiration, the contraction of sternohyal muscles lowers the floor of the buccal cavity to draw in air, while the contraction of petrohyal muscles raises the floor to pump air into the lungs or out of the mouth.

Multiple choice frog - control and coordination system frog animal diversity - ii (phylum: chordata) organ and organ systems in animals zoology

What happens if ophthalmic branch of trigeminal is cut in frog?

  1. Frog dies

  2. Frog becomes blind

  3. Frog loses its capacity of sensing

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

The ophthalmic branch of the trigeminal nerve is a sensory nerve in frogs that carries sensory information from the snout and head region. Cutting it results in a loss of sensation in those areas.