Which of the following best describes the correct sequence of events involved in hemostasis?
A) vascular spasm, platelet plug, production of thrombin, production of fibrin
B) production of fibrin, platelet plug, vascular spasm, conversion of prothrombin to thrombin
C) vascular spasm, platelet plug, conversion of prothrombin to fibrin
D) platelet plug, production of thrombin, production of fibrin, vascular spasm
E) vascular spasm, conversion of calcium ions to thrombin, platelet plug, production of fibrin
Answer: A) vascular spasm, platelet plug, production of thrombin, production of fibrin
You might also like to view...
You track aquatic coastal levels of nitrogen and phosphorus at high latitudes and notice a sharp increase in the winter and then again in the spring. What do you expect the effect of these nutrient increases will be on the plankton populations?
A. sharp spikes in population levels at essentially the same time (or, in phase) with the spikes in nutrients B. sharp spikes in population levels some time after (or, out of phase) with the spikes in nutrients C. a sharp spike in population levels in the spring, when light levels are higher; not much of a response in winter D. no effect of the changes in nutrient concentration on the plankton populations in either winter or spring
________ is the evolutionary history of a species or group of related species
a. Cladistics b. Phenetics c. Phylogeny d. Cladogram
Plants that produce scentless, inconspicuous flowers with enormous amounts of pollen are adapted to which type of
pollination? a. wind b. birds c. bats d. small rodents e. insects
Which of the following is a modified fatty acid?
a. prostaglandin b. cyclic AMP c. thyroid hormone d. epinephrine e. melatonin