Which bone(s) is (are) part of the pectoral girdle?
A. manubrium
B. ulna
C. radius
D. clavicle
E. carpals
Answer: D
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The characteristic ____________of a radioisotope
allows us to determine the age of rocks and fossils using a technique called __________ Fill in the blank(s) with the appropriate word(s).
Which of the following is TRUE of fetal circulation?
a. The allantois carries fetal blood to the placenta. b. Fetal hemoglobin binds oxygen more easily than the adult form. c. Fetal blood mixes with maternal blood to ensure proper gas exchange. d. Blood flow into the lungs is 50% of adult flow. e. The liver, heart and lungs receive the majority of blood flow.
In the "photo" reaction of photosynthesis, where does the energy to build ATP come from?
a) In the first electron transport chain, hydrogen ions are pumped into the thylakoid by high-energy electrons; the kinetic energy from the release of these ions builds ATP b) In the NADPH-producing photosystem, the electrons from the electron transport chain produce energy upon being transferred c) In the water-splitting photosystem, the electrons release energy upon being transferred to the electron transport chain
A promoter is a regulatory region located at the ____
a. beginning of a gene
b. end of a gene
c. beginning of a chromosome
d. centromere of a chromosome
e. end of a chromosome