Which of the following causes blood to move through veins?
A) vasodilation B) contraction of smooth muscle
C) blood pressure D) contraction of skeletal muscle
Answer: D
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Zygote intrafallopian transfer (ZIFT) requires in vitro fertilization to be performed before embryo transfer into the oviduct
a. True b. False Indicate whether the statement is true or false
The degree of relatedness between a niece and an uncle is ____, and the degree of relatedness between first cousins is
____.
a. 0.75; 0.50 b. 0.50; 0.25 c. 0.25; 0.125 d. 0.125; 0.0625 e. 0.0625; 0.03125
The protist ancestor to animals appears to have belonged to which group?
A. euglenoids B. foraminifera C. choanoflagellates D. dinoflagellates
The plasma membrane of eukaryotes contains all of the following except ________.
A. phosphoglycerides B. peptidoglycan C. sphingolipids D. sterols