In __________ speciation, a population forms a new species within the same geographical region as
the original species.
a. allopatric
b. sympatric
c. heterogeneous
d. autologous
e. parapatric
B
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In water, MgCl2 dissociates into Mg2+ and Cl-. Based on this information what type of bond is involved in the formation of MgCl2?
A. hydrogen. B. ionic. C. polar covalent. D. nonpolar covalent. E. electrostatic.
Chromosomes that do NOT determine the sex of an individual are called ________
A) homologous chromosomes B) nonhomologous chromosomes C) sex chromosomes D) autosomes
Use the following dataset to answer the following question.NameMonthCommissionTenureTravel ExpenseSophie Castro1$48,0004 years$11,000Travis Turner1$53,0007 years$21,000Elias Hansen2$67,00010 years$7,000Amanda Garza2$72,0008 years$14,000What is the unit of observation?
A. Tenure B. Month-tenure C. Month D. Person-month
Which is not correct about kala azar?
A. Chemotherapy with chloroquine is usually effective. B. It is transmitted by the sand fly. C. It is a form of leishmaniasis. D. It is fatal in untreated cases. E. Death is partly due to anemia, destruction of blood-forming tissues, and secondary infections.