HIV binds strongly to which of the following?

A) CD3
B) CD4
C) CD 8
D) all of these


B

Environmental & Atmospheric Sciences

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After taking urban warming into account, average surface air temperatures have increased by about ________ in the past 130 years

a. 0.01oC b. 0.1 oC c. 0.6 oC d. 6 oC

Environmental & Atmospheric Sciences

Trumpet trees (Tabebuia caraiba), a dry-season deciduous tree, would likely be found in which of the following biomes?

A) Desert B) Tropical rain forest C) Midlatitude grassland D) Tropical seasonal forest and scrub

Environmental & Atmospheric Sciences

In a transgressive sequence, sandstone is overlain by ________.

A. conglomerate B. shale and then limestone C. limestone and then shale D. coarser-grained sandstone

Environmental & Atmospheric Sciences

Most of the ________ of the United States has/have a very thin blanket-only 1000 to 2000 meters-of sedimentary rock layers.

A. Oregon-Washington coast B. craton C. Blue Ridge Mountains D. Rocky Mountain region E. Gulf Coast

Environmental & Atmospheric Sciences