Areas that receive heavy rainfall tend to have ____ soils, and arid regions tend to have ____ soils
a. acidic; alkaline
b. pH-neutral; acidic
c. alkaline; acid
d. acidic; pH-neutral
e. pH-neutral; alkaline
A
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The primary curvatures of the spine serves mainly to
A) accommodation of the thoracic and abdominopelvic viscera. B) aligning the weight of the head over the legs. C) increasing the ability to extend the limbs. D) take weight off of the hips. E) shifting the weight of the trunk to the hips and lower extremities.
What limitation(s) make it impossible to travel between stars? I. fuel requirements II. the tremendous distances between stars III. the finite speed at which objects can travel
a. I b. II c. III d. II & III e. I, II, & III
Inserting a cloned gene for a certain plasma membrane transporter into crop plants could lead to
A. the evolution of nodule-formation on the crop plant. B. plants taking up enough minerals that they no longer need to photosynthesize. C. the ability of a plant to produce its own micronutrients. D. extra uptake of minerals that would fortify the crop for human consumption. E. elevated CO2 levels in the atmosphere.
Hemostasis involves which blood component?
A. basophils B. platelets C. phagocytes D. monocytes E. neutrophils