Select your answer:
Topics:
Proteins Vessels Molecular Genetics Integrated Science Introduction to Kinesiology Bonding and the Periodic Table Respiratory and Circulatory Vital Signs Psychopathology Biotechnology and Genetic Engineering Vet Terminology Cellular and Sexual Reproduction Autoimmune Disease Oral Hygiene Uses of Radioactive Radiation Stimuli and Responses in HumansOther quiz:
Pancreas › ViewInsulin is released in response to:
A. low blood glucose levels
B. low blood calcium levels
C. high blood glucose levels
D. high blood calcium levels
Circulation and Excretion › View
Water across the gills of fish and the blood in the gills does in opposite direction enhancing the diffusion of oxygen from the water into the blood. What is this flow in the opposite direction called?
A. undirectional flow
B. countercurrent exchange
C. atriventricular exchange