Which portion of a T-cell receptor is furthest from the cell membrane of the T cell?
A) the amino end of the constant domain
B) the amino end of the variable domain
C) the carboxylate end of the constant domain
D) the carboxylate end of the variable domain
B
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The closest position taken by the Earth relative to the Sun is ________ million kilometers (miles)
A) 10 (6.21 miles) B) 47 (29.20 miles) C) 147 (91.34 miles) D) 1,470 (913.41 miles) E) 14,700 (9134.15 miles)
The land surface cools off more rapidly at night than water does because
A) the energy is stored in a shallow layer near the surface of the land, and so it can be radiated away faster. B) the amount of energy stored in the water column is less than that stored in land. C) heat is transferred to deeper depths on land via conduction. D) There is more ocean than land, so more ocean is being heated than land.
Describe the general width and shape (cross section) of the valley floors of first-order streams in the Eds Creek drainage basin.
What will be an ideal response?
Approximately how much energy is released by the hydrolysis of one mole of ATP to AMP?
A) 3.4 kcal B) 7.3 kcal C) 10.7 kcal D) 14.6 kcal