★ Eye in Color Vision Quiz
According to the trichromatic theory of color vision, which types of cones are present in the human eye?
A. Red, Green, Blue
B. Red, Yellow, Blue
C. Green, Yellow, Black
D. Red, Green, Black
Select your answer:

Topics:
Circulatory System - Pathway of Blood Health issue related to immune system Nutrition In Animal Mechanical Digestion Human Brain Respiration in Organisms Thrombosis, Emboliya Infectious Disease Vision and Hearing Defects Tissues Mutations, Replication, and Cancer Vessels Fungi/Bacteria/Biotechnology Cell Theory The Microbial WorldOther quiz:
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A. Yes
B. No
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Where does the stomach empty into?
A. Small intestine
B. Large intestine
C. Pancreas
D. Liver