List the steps in the process by which a bone heals
What will be an ideal response?
A clot forms, osteoclasts eat away damaged material, osteoblasts form a callus, remodeling occurs, and osteoclasts remove excess bone.
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Distinguish between major minerals and minor minerals
What will be an ideal response?
Turbinates were found in therapsids, extinct reptiles thought to be ancestors of mammals. What could the researchers conclude from this observation?
A. Ectothermy arose before fur. B. Ectothermy arose after fur. C. Endothermy arose before fur. D. Endothermy arose after fur. E. Birds did not descend from reptiles.
In a normal mammalian birth, how does the body guarantee that birth proceeds to completion?
A. Via negative feedback-stretching of the uterus by the descending fetus induces release of FSH and LHÂ from the posterior pituitary causing even stronger uterine contractions. B. Via negative feedback-stretching of the uterus by the descending fetus induces release of prostaglandins from the posterior pituitary causing weaker uterine contractions. C. Via positive feedback-stretching of the uterus by the descending fetus induces release of prolactin from the posterior pituitary causing even stronger uterine contractions. D. Via positive feedback-stretching of the uterus by the descending fetus induces release of oxytocin from the posterior pituitary causing even stronger uterine contractions.
The best scientific explanation for differences in structure, function, and behavior found in different species or organisms is provided by
a. carbohydrate electrophoresis b. population chromatography c. the theory of carrying capacity d. the theory of evolution