★ Organ Senses and Locomotor System Quiz
The structure of the eye that controls how much light reaches the retina is the:
A. Crystalline lens
B. Pupil
C. Sclera
D. Iris
Select your answer:
Topics:
Infectious Disease and Pathogens Economic importance of Bacteria Muscular Trichology Bacteria & Viruses Arteries Dementia Biopsychology - Neuroplasticity and Functional Recovery Anatomy Bones Pancreas CV System A&P & Pathology Forensic Odontology Food and Nutrition Body Systems Forensics: BloodOther quiz:
Human Organ System › ViewHumans breathe in ______ and breathe out _______.
A. Carbon dioxide; oxygen
B. Oxygen; carbon dioxide
C. carbon, oxygen
D. oxygen, carbon
Integumentary system › View
The protein that makes us “waterproof” is called
A. Mucus
B. Carotene
C. Keratin
D. Carotene