Host-paras Study guides, Class notes & Summaries

Movement to contact an offensive task designed to develop the situation and establish or regain contact creating favorable conditions for subsequent tactical action; commanders conduct this offensive task when the enemy situation is vague or not specific enough to conduct an attack. Attack an offensive task that destroys or defeats enemy forces, seizes and secures terrain, or both incorporating coordinated movement supported by fires or on occaision by fires alone; they may be either de...

Antagonistic coevolution The costs of parasitism lead to antagonistic coevolution between hosts and parasites. Hosts can evolve resistance (typically by closing the compatibility filter) or tolerance (focusing on resistance this week). Stahl et al. (1999): Arms races in a disease-resistance locus of Arabidopsis Red Queen (cyclic) new alleles arise frequently frequency-dependent selection: rare alleles in the parasite, or host, have an advantage resistance alleles tend to be monomorphic ...

Evolutionary medicine course notes

NR 507 MIDTERM QUESTIONS AND ANSWERS The lung is innervated by the parasympathetic nervous system via which nerve? Vagus Phrenic Brachial Pectoral Fibers of the paras ympathetic division of the autonomic nervous system (ANS) travel only in the vagus nerve to the lung. What is the action of urodilatin? Urodilatin causes vasoconstriction of afferent arterioles. It causes vasodilation of the efferent arterioles. Urodilatin inhibits antidiuretic hormone secretion. It inhibits salt and water reabsorp...