AU | MCQs

Explanation

Dogs can hear sounds in the range of 67 Hz to 45,000 Hz, which is slightly higher than the human audible range.

Explanation

• Whales have a unique audible range that is adapted to their underwater environment.
• They can hear sounds at very low frequencies, often below 20 Hz, and up to 31 kHz.

Explanation

Explanation

• The visible part of the ear is called the External Ear 
• It is also known as the Pinna or Auricle.
• It is the outer, cartilaginous structure that protrudes from the side of the head and collects sound waves, directing them into the ear canal.

Explanation

• The Ear is made up of both internal and external parts.
• The external part is the visible outer ear.
• The internal parts include the middle ear and the inner ear.
• Which contain the cochlea and the vestibular system.

Explanation

• The Ear is the body part responsible for hearing and maintaining the body's balance.
• The ear consists of the outer ear, middle ear, and inner ear.

Explanation

Videotape is magnetic tape used for storing video and usually sound in addition. Information stored can be in the form of either an analog signal or digital signal.

Explanation

A vehicle's battery is charged due to the chemical reactions between the electrodes and electrolyte inside it, which generate electrical energy.

This chemical effect is fundamental to the battery's ability to store and supply electrical power.

Explanation

In protozoa, holophytic nutrition (photosynthesis-like) is also referred to as holozoic nutrition when they ingest solid food.

But specifically, holophytic is more similar to autotrophic, and in protozoa, holozoic describes ingestion of food.

Explanation

The autonomic nervous system controls involuntary activities like cardiac muscle contraction, salivation, and smooth muscle contraction,

but thoughts and emotions are regulated by the central nervous system (CNS).