(English Medium) ICSE Class 10 - CISCE Question Bank Solutions

Mention whether the following statement is (T) Or (F). Give reason in support of your answer.  

Crossing over between chromatids can occur only between homologous chromosomes. 

The diagram given below represents a certain phenomenon which occurs during meiosis. Name and explain the phenomenon by using the terms homologous chromosomes, chromatids, crossing over. 

Which part of the human ear gives ‘ Dynamic balance’ to the body? 

Choose the correct answer:
Crossing over is a feature of ______________

Give the biological terms for the three ear ossicles.

Distinguish between Semicircular canals and Utriculus based on their function.

The ear ossicle that transports sound vibrations to the inner ear:

Which part of the human ear gives ‘Static balance’ to the body? 

Rahul inserted a hairpin into his right ear to remove ear wax. He felt a sudden sharp pain with loss of hearing. This was due to ______.

Arrange and rewrite the term in the group in the correct order so as to be in a logical sequence, beginning with the term that is underlined.

Auditory canal, Organ of Corti, Stapes, Malleus

Read the explanation given below and name the structure:

A tubular passage that connects the pharynx and the middle ear.

Give reason:

The children of the same parents, howsoever similar, are different from each other in certain aspects.

Human ear is concerned with hearing only.

Pinna concentrates and directs sound waves towards tympanum.

Write the main functional activity of the following structure.

Cochlea

Write the main functional activity of the following structure.

Semicircular canal

Complete the following table by filling in the blank spaces.

How do the three ear ossicles contribute in the mechanism of hearing?

With reference to human ear answer the question that follow:

Name the part of the ear associated with hearing.

Choose the odd one in each of the following: 

Oestrogen; progesterone; testosterone; prolactin.