Consider the observation that people taking Drug X for headaches also seem to have low blood pressure. Design a simple experiment based on this observation, and include a hypothesis statement and your actual experimental design for the study
What will be an ideal response?
Answers should include a controlled variable, repetition, and a hypothesis statement.
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How has climate change altered the mountain pine beetle?
A) They are being outcompeted by the prairie pine beetle. B) They now have two generations per year. C) They have decreased the average elevation of their distribution. D) Their abundance has increased through lack of predators due to mismatched phenology.
Ribosomes are the site of
What will be an ideal response?
Parasitism is an association between two organisms in which
a) they require each other for survival b) one organism hunts and ingests the other c) they live in close association, but neither is harmed nor helped by the association d) one benefits while the other is harmed
How is the stomach lining protected from the strongly acidic pH of its contents?
a. Mucous cells secrete a protective lubricant into the stomach. b. It releases a hormone called gastrin, which stops gastric juice secretion. c. Bile neutralizes the acid soon after it enters the stomach. d. Parietal cells secrete a protective buffer to neutralize hydrochloric acid. e. The acid is neutralized quickly when it combines with pepsinogen to make pepsin.