In some cultures, parts of the central nervous system (e.g., brains) of cattle are popular foods. Predict the issues that might arise from this practice
What will be an ideal response?
According to the chapter, transmissible spongiform encephalopathies are associated with the brains of certain livestock, including cattle. The condition arises from prions, and the prion responsible for mad cow disease is thought to cause one form of Creutzfeldt-Jakob disease in humans.
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The correct order of events in metastasis of a cancer is
A) invasion ? angiogenesis ? transport ? new site B) transport ? invasion ? angiogenesis ? new site C) transport ? angiogenesis ? invasion ? new site D) angiogenesis ? invasion ? transport ? new site E) angiogenesis ? transport ? invasion ? new site
After formation, an asteroid could produce an iron core and a rocky silicate mantle if it melted then
a. differentiated. b. outgassed. c. condensed. d. accreted. e. sublimed.
Where in a plant cell is chlorophyll found?
a. on the outer chloroplast membrane b. inside the mitochondria c. in the stroma d. in the thylakoid membrane e. in the plant cell wall
Disturbances in sensory neurons will result in an
action potential if the a. potential is graded. b. potential change remains local. c. graded potential of threshold size reaches a trigger zone. d. localized potential changes do not spread too far. e. potential changes become downgraded to localized ones.