Which structure contains some autonomic centers involved in regulating respiration?
a. pons
b. superior colliculi
c. cerebellum
d. thalamus
a. pons
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The spleen is essentially a giant lymph node, because it is encapsulated, has trabeculae, and filters lymph to remove antigens
Indicate whether this statement is true or false.
Dehydration synthesis reactions _____, whereas hydrolysis reactions _____
A) lose H2O to form bonds; use H2O to break bonds B) lose H2O to break bonds; use H2O to form bonds C) break large molecules into smaller ones; build large molecules from smaller ones D) use H2O to form bonds; lose H2O to break bonds
The formation of endodermal and ectodermal germ layers occurs at ________
A) blastula formation B) fertilization C) cleavage D) gastrulation
What do a mesothelium and an endothelium have in common?
A) They both are simple squamous epithelium. B) They both line blood vessels. C) They both are limited to the abdominal cavity. D) They both are stratified squamous epithelium. E) They both are simple columnar epithelium.