The release of ________ during a type I hypersensitivity reaction contributes to swelling
A) histamine
B) prostaglandins
C) leukotrienes
D) both histamines and leukotrienes
E) both proteases and prostaglandins
D
Bloom's Taxonomy: Knowledge
Section: Hypersensitivities
Learning Outcome: 18.3
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Scientists have found that extracellular matrix components may induce specific gene expression in embryonic tissues such as the liver and testes. For this to happen there must be direct communication between the extracellular matrix
and the developing cells. Which kind of transmembrane protein would most likely be involved in this kind of induction? A) integrins B) collagens C) actins D) fibronectins
Mosses and liverworts are limited in size because they lack:a
sperm. b. eggs. c. vascular tissues. d. stomata. e. reproductive structures.
The activation of the parasympathetic branch of the autonomic nervous system is associated with _____
A) resting and digesting B) release of epinephrine into the blood C) increased metabolic rate D) intensive aerobic exercise
When two identical alleles for a character are present, the genotype is referred to as:
A) dominant. B) recessive. C) heterozygous. D) homozygous.