The difference between the ruminant and pseudoruminant digestive system is that
a. the pseudoruminant stomach lacks the omasum.
b. the pseudoruminant stomach lacks the pregastric region.
c. the pseudoruminant stomach lacks the reticulum.
d. the pseudoruminant stomach has four compartments.
e. the pseudoruminant reticulum is the site of nutrient absorption.
A
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During embryonic development, blood vessels are formed by
a) endodermal cells. b) pluripotent stem cells. c) angioblasts. d) fibroblasts. e) osteoblasts.
A person whose genetic makeup makes him or her a better marathon runner than a sprinter probably has more ________ in his or her leg muscles.
A) fast fibers B) intermediate fibers C) slow fibers D) dark fibers E) red fibers
The metacarpophalangeal joints at the base of the fingers are ________ joints.
A. pivot B. hinge C. condylar D. plane (gliding) E. ball-and-socket
The allantois
A. is the fetal half of the placenta. B. becomes the umbilical cord vessels. C. cushions and protects the embryo with fluid. D. is the first site of blood cell formation.