★ Vision & Hearing Quiz
The part of your eye that dilates or contracts to control the amount of light let in is your
A. lens
B. pupil
C. iris
D. cornea
Select your answer:
Topics:
Hormones Hearing Impairment Communicable Diseases and Immune Response (OCR) Alzheimer Disease and Dementia Properties of Hair and Scalp Multicellular Organisms: Organisation Radiology Infection Control Cardiopulmonary Skin Structure and Growth Polio Parts of the Body Pathogens, Disease and Immunity Who am Eye? Vitamins Deaf BlindOther quiz:
Cells, Genetics & Heredity Review › ViewA mother rabbit has a litter. One of the babies is born with one long ear and one short ear. What most likely caused this one rabbit to be born with one short ear?
A. The mother rabbit had previously lost an ear in an accident.
B. The mother rabbit became sick before she gave birth.
C. A mutation occurred during the development of this one rabbit.
D. This one rabbit received less nutrition than the other rabbits before it was born.
Endocrinology › View
Stimulates thyroid to secrete thyroxine
A. thyroid-stimulating hormone (TSH)
B. thyroxine
C. calcitonin
D. parathyroid hormone (PTH)