A mother brings a child into the ER with a severe nosebleed that won't stop bleeding. She also tells the doctors that the child bruises very easily in response to very minor accidents
Given the information in the text, the doctor orders some tests and finds that the young boy has ________. A) anemia
B) hemophilia
C) embolus
D) leukemia
B
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The biome with the most complex diversity is the ____
a. tundra b. taiga c. tropical rain forest d. desert e. grassland
Assume that a black guinea pig crossed with an albino guinea pig produced five black offspring. When the albino was crossed with a second black guinea pig, four black and three albino offspring were produced
What genetic explanation would apply to these data? A) albino and black = codominant B) albino = recessive; black = dominant C) albino = recessive; black = recessive D) albino = dominant; black = incompletely dominant E) None of the answers listed are correct.
The chemical signal sent out by macrophages to mobilize the immune system is
A. interleukin-2. B. interferon. C. interleukin-1. D. perforin.
What is the term for movement of water and nutrients between biotic and abiotic portions of an ecosystem?
A) decomposer-detrital cycling B) biogeochemical cycling C) bio-cycling D) energy cycling