The yolk sac in human contain yolk which supplies nutrients to the growing embryo?
a. true
b. false
Answer: b. false
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The oldest definite primates, adapids and omomyids, are classified as early __________.
A) cercopithecines B) hominins C) prosimians D) anthropoids
Which of the following is the correct sequence of steps in the repair of a bone fracture?
a) fracture hematoma, bony callus formation, fibrocartilaginous callus formation, bone remodeling b) fibrocartilaginous callus formation, bony callus formation, fracture hematoma, bone remodeling c) bony callus formation, fracture hematoma, fibrocartilaginous callus formation, bone remodeling d) bone remodeling, fracture hematoma, fibrocartilaginous callus formation, bony callus formation e) fracture hematoma, fibrocartilaginous callus formation, bony callus formation, bone remodeling
When the ECF becomes hypertonic, water
a. movement is unaffected b. moves into the cells by active transport c. moves into the cells by osmosis d. moves out of the cells by active transport e. moves out of the cells by osmosis
Most congenital birth defects are caused by
A. inherited traits. B. viral infections during pregnancy. C. unknown causes. D. lack of oxygen to the fetus. E. None of the choices are correct.