Which of the following quantities affects a discus as it travels through the air?
A. surface drag
B. lift force
C. both A and B
D. neither A nor B
C. both A and B
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Synovial joints are different from both fibrous and cartilaginous joints because synovial joints
A. use fibrous connective tissue to hold the bones in the joint together. B. are enclosed by a joint capsule. C. are only temporary; they are replaced in the adult. D. generally have both bones in the joint fused together. E. are not freely moveable.
The mucus membrane lining of the uterus is the:
a. myometrium b. endometrium c. fundus d. cervix
What artery becomes the femoral artery as it passes deep to the inguinal ligament?
A) popliteal B) anterior tibial C) external iliac D) great saphenous
Frogs have only one ventricle. What's an apparent shortcoming of frog hearts?
a. can't generate enough blood pressure with only one ventricle b. O2?rich and O2?poor blood from R and L atria will mix in single ventricle c. problem selectively directing O2?rich blood to body or O2? poor blood to lungs d. b and c