Allergies occur when the body responds to _____
a. pathogens c. normally harmless substances
b. toxins d. all of these
B
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The typical carbon atom is described in the periodic table by the accompanying box. How many protons are in a typical oxygen atom?
A. 12 B. 8 C. 18 D. Not enough information given
The modern synthesisis NOT based on ____
a. connecting microevolution and macroevolution b. bridging Darwinism with Mendel's work c. focusing on population genetics d. linking population growth with variation to explain natural selection e. interpreting data from a variety of biological disciplines in an evolutionary framework
Which feature helped define the evolution of the primate lineage? a. The face became flattened and the eyes became forward facing
b. Skeletal changes allowed for upright walking. c. The hands became adapted for new tasks. d. All of these are unique features to the primate lineage. e. The teeth became less specialized.
You conduct a study with mice to determine whether giving them air with a higher-than-normal oxygen level results in their having a higher-than-normal oxygen content in their blood. What vessel should you draw blood from if you want to measure the
highest potential level of oxygen content in the blood? A) superior vena cava B) pulmonary vein C) pulmonary artery D) inferior vena cava