Micelles, made of bile salts, have hydrophilic and hydrophobic regions that allow them to emulsify fats and dissolve in water.
Answer the following statement true (T) or false (F)
True
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In the diagram, which layer is the stratum granulosum?
a) E b) F c) G d) H e) I
Which of the following statements regarding the muscularis externa of the esophagus is true?
A) The upper third portion of the esophagus consists of smooth muscle, the middle third portion is a mixture of smooth and skeletal muscles, and the lower third consists of skeletal muscle. B) The entire muscularis of the esophagus consists of skeletal muscle only. C) The entire muscularis of the esophagus consists of smooth muscle only. D) The upper third portion of the esophagus consists of smooth muscle, and the remaining portion is a mixture of skeletal and smooth muscles. E) The upper third portion of the esophagus consists of skeletal muscle, the middle third portion is a mixture of skeletal and smooth muscles, and the lower third consists of smooth muscle.
Homeostatic control systems and acclimatization are examples of biological adaptations
Indicate whether the statement is true or false.
The countercurrent heat exchanger that prevents arterial blood from overheating the testes is the ________
A) rete testis B) pampiniform plexus of veins C) epididymis D) scrotal portal system E) blood-testis barrier