Which of the following immunoglobulin classes has the smallest molecular weight?
A) IgA
B) IgD
C) IgE
D) IgM
B
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Describe the general locations of the tropical deciduous forest biome relative to the tropical rainforest biome (especially note the pattern in South America and Africa).
Using the global map of biome distribution (Map T-30 in the back of the Lab Manual), the map of climate distribution (Map T-29), the maps of global temperature (Maps T-28a and T-28b), the map of global precipitation (on the inside front cover of the Lab Manual), as well as information about Köppen climate types from Exercise 23, answer the question. What will be an ideal response?
Radium in groundwater
A. makes the water unsafe for bathing. B. occurs only near leaking radioactive-waste dumps. C. can be removed by water softeners. D. All of the choices are correct.
Why does India have so many distinctive regional filmmaking industries?
What will be an ideal response?
Natural selection may favor traits that help organisms
A. successfully raise offspring. B. survive. C. acquire mates. D. all of the above