Which of the following is the correct sequence of blood flow in birds and mammals?

A) left ventricle ? aorta ? lungs ? systemic circulation
B) vena cava ? right atrium ? right ventricle ? pulmonary vein
C) pulmonary vein ? left atrium ? left ventricle ? pulmonary circuit
D) vena cava ? right atrium ? right ventricle ? pulmonary artery
E) right atrium ? pulmonary artery ? left atrium ? ventricle


Answer: D

Biology & Microbiology

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a. fertilization ? cleavage ? gastrula ? blastula b. fertilization ? cleavage ? blastula ? gastrula c. fertilization ? blastula ? cleavage ? gastrula d. fertilization ? gastrula ? blastula ? cleavage e. fertilization ? blastula ? gastrula ? cleavage

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Ste5 binds to MAPKKK, MAPKK, and MAPK to organize the kinase cascade. What type of signaling molecule is Ste5?

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__________________ Indicate whether the statement is true or false.

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Which of the following would be correctly classified as a protein?

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