★ The Human Eye Quiz
Which part of the eye can change thickness in order to focus on an object?
A. cornea
B. pupil
C. lens
D. iris
Select your answer:

Topics:
Organ Systems Source of Food Urinary Macromolecules Weight Management Biotechnology Cell Bio The nervous system & brain Health and Medicine Properties of Hair and Scalp Tutor Oral Biology Differentiation and Division of Human Cells History of Immunology Integumentary System Energy, Hydrology, MicrobiologyOther quiz:
Biology › Viewthe building blocks of proteins are
A. simple sugars
B. starches
C. amino acids
D. nucleic acids
Microbiology › View
Plasma
A. is the liquid portion of blood in which blood cells are suspended.
B. is mostly water.
C. contains albumin and globulins.
D. All of the choices are correct.