Login
Login
Sign up
Start
Mathmania
Teacher tutorials
TOP
Subjects
Bridge Course
Testworks
Subject updates
Ya+
News
Send feedback
See more
Contacts
About Us
Terms and Conditions
Privacy Policy
PDF chapter test
TRY NOW
Subjects
Science State Board
Class 8
Reaching the age of adolescence
Adolescence and reproductive health
10.
Other changes in puberty in boys and girls - voice change, mental maturity
Exercise condition:
4
m.
Choose the correct answer
:
1
.
What causes hoarseness in the voice of boys?
regulatory chemicals secreted during male hormone
muscle cords gets thickened and loosened
muscle in larynx grows out of control
all of the above
2
.
Sweat glands secrete sweat to
regulate the body temperature
protect the skin surface
regulate growth and development
none of the above
3
.
In girls the larynx is big and visible clearly.
false
true
Login
or
Fast registration
Previous exercise
Exit to the topic
Next exercise
Send feedback
Did you find an error?
Send it to us!