Which of the following statements is true regarding energy use and pollution?
A. Energy consumption has little to do with environmental problems such as air pollution.
B. Nuclear power creates energy without producing pollution.
C. The mining of coal causes pollution on land and is a serious health problem.
D. Off-shore oil drilling poses few risks to regional ecosystems.
C. The mining of coal causes pollution on land and is a serious health problem.
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Which of the following characterizes immunological memory? (Select all that apply.)
a. The host retains the capacity to mount a secondary immune response. b. The host retains the ability to respond to pathogen many years after primary exposure. c. Naive T cells are activated more quickly when exposed to pathogen. d. Memory B cells produce higher-affinity antibody than naive B cells. e. Memory T cells undergo somatic hypermutation. f. Memory T cells express CD45RA.
A heat illness characterized by excessive sweating, cool skin, nausea, and weakness is called _____.
heat exhaustion hypokalemia heat cramps heat stroke
Younger students are usually capable of understanding different perspectives but often struggle to understand abstract concepts.
Answer the following statement true (T) or false (F)
Which of the following characterizes the resistance stage of the general adaptation syndrome?
A) A person's physiology is negatively impacted, reducing immunity. B) A person's physiology and behavior adjust to the stressor. C) A person's physiology and behavior adjust to the stressor but never fully recover to original pre-stress levels. D) A person's behavior is negatively impacted, potentially creating swings in personality.