What cell type develops into plasma cells?
A) T cells
B) macrophages
C) helper T cells
D) mast cells
e) B cells
Answer: e) B cells
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Consider the data in Fig. 46.11 illustrating the survivorship curve of the Lime Swallowtail butterfly. As indicated in your text, the survivorship from the egg to larval stage is 68%
If the average time from egg to adult is 43 days, what is the per capita death rate? What will be an ideal response?
Chart the path of urine from the blood to the outside of the body. What will be an ideal response?
The coefficient of inbreeding (F) can be used to estimate the proportion of loci that are __________
A) fixed in a population B) homozygous identical by descent C) heterozygous by descent D) lethal alleles E) recessive
The figure included shows the body temperature of lizards versus air temperature in two different habitats-open and shaded forest. Which one of the following conclusions is best supported by these data. 
A. Lizards in shaded forest habitats eat more to maintain their temperature. B. The body temperature of lizards is more constant in open than in shaded forest habitats. C. Lizards are more active in open habitats. D. Lizards sunbathe more in open habitats. E. The negative effect of air temperature on body temperature is less in shaded forest habitats because the temperature varies less there.