In the decapod crustacean, blood returns to the heart through small holes called __________
Fill in the blank with the correct word.
Answer: Ostia
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The ________ contains the heart, lungs, and large blood vessels
A) Spinal cavity B) Cranial cavity C) Abdominopelvic cavity D) Thoracic cavity
The premise that a T cell must receive two specific simultaneous signals to be activated, one from its compatible antigen and a stimulatory cosignal molecule on the surface of an APC is called clonal ___________
Fill in the blank(s) with correct word
Which of the light micrographs in the figure below shows a pseudostratified columnar epithelium?
a) A b) B c) C d) D e) E
Spinal nerves are connected to the spinal cord by which of the following structures?
A. Anterior root ganglia B. Posterior and anterior roots C. Posterior and anterior horns D. The central canal E. The gray commissure