A role of the lymphatic system is to ________
A) transport histamine
B) produce hormones related to fighting infections
C) produce white blood cells
D) return tissue fluid to the circulatory system
Answer: D) return tissue fluid to the circulatory system
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True or False. An incomplete fossil record is evidence that the theory of evolution is false
A. true B. false
Once food is digested, the nutrients must be absorbed by the epithelial cells that line the specialized portions of the alimentary canal. Small, hydrophobic molecules can diffuse down concentration gradients across the membrane. What types of molecules would require ACTIVE TRANSPORT in order to get across?
A. minerals B. monoglycerides C. water D. salt E. amino acids
The part of the brain that connects the cerebellum to higher integrating centers of the forebrain is the
a. cerebrum. b. pons. c. cerebellum. d. fissure of Rolando. e. hypothalamus.
What molecules do group I introns require for autosplicing?
What will be an ideal response?