MHC markers function in ________

a. histamine and prostaglandin release
b. memory of previously encountered antigens
c. antigen reception in T cells
d. self-recognition and antigen presenting


d

Biology & Microbiology

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A biologist discovers a new species of organism adapted to living in a deep underground cavern that provides no source of free water. The organism is eyeless and covered by fur, and it has a four chambered heart with a closed circulatory system. What excretory system adaptations to this extreme environment might the biologist expect to find?

A. Very long malpighian tubules B. Very short malpighian tubules C. Metanephridia with a large number of nephridiopores D. Nephrons with long loops of Henle E. Nephrons with short loops of Henle

Biology & Microbiology

The cell's hereditary information is stored in ____

a. DNA b. protein c. RNA d. glucose e. amino acids

Biology & Microbiology

Which is characteristic of the adult thymus?

A. Continuing growth, corresponding to numerous infections over time B. Fusion of its lobes into a single lobe C. Infiltration by adipocytes D. The adult thymus is identical in structure to the child's thymus E. Total degeneration; only children have thymus tissue

Biology & Microbiology

The process of ________ enables DNA to pass its information to RNA

Fill in the blank(s) with correct word

Biology & Microbiology