What is the most common transport method for carbon dioxide?
A) oxyhemoglobin
B) deoxyhemoglobin
C) carbon monoxide
D) bicarbonate ions
D
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Most of the lymph returns to the venous circulation by way of the
A) right lymphatic duct. B) thoracic duct. C) cisterna chyli. D) hepatic portal vein. E) dural sinus.
The site of infection is the location at which lymphocytes
A. are formed. B. provide an effector response. C. are activated. D. become able to recognize one specific foreign antigen.
Amy is a premed student with a summer job as an animal research technician. One of her duties is to withdraw blood by syringe from the anterior vena cava of pigs, to be analyzed for various hormones. During her training she noticed that most blood samples were very dark in color, but occasionally a sample was bright red. Propose an explanation.
What will be an ideal response?
Considering the life-history characteristics of most turtles, which of these approaches to conservation of a species of turtle is likely to be more effective, and why: protecting eggs and nests so that the hatchling turtles can reach the water or
protecting adult female turtles?