Which of the following diffuses in greater

amounts from the fetal blood to the mother's
blood?
a. oxygen
b. urea
c. hormones
d. antibodies
e. nutrients


B

Biology & Microbiology

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A. true B. false

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Which proteins facilitate RNA polymerase binding at promoters?

What will be an ideal response?

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Explain the changes in vegetation observed with increasing elevation. BONUS: Compare this to

changes in vegetation with latitude What will be an ideal response?

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