A closed culture system is used to determine a population growth curve.
Answer the following statement true (T) or false (F)
True
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One disadvantage of hydroelectric energy as a renewable power source is that ____
a. it causes disease-causing organisms to remain in the stream b. it contributes to acid rain c. it produces greenhouse gases d. its dams block salmon from returning to streams to breed e. it pollutes streams downriver from the dams
The first major divergence of life followed the origin of ____
a. aerobic respiration b. nucleic acids c. endomembrane system d. cells e. endosymbiotic origin of mitochondria
What is Muller's Ratchet theory?
What will be an ideal response?
A group of patients was seen on an emergency basis complaining of abdominal craps and watery diarrhea within 5 hours of attending a picnic in which ham, potato salad, and custard-filled pastries were on the menu. Which of the following is the likely cause of this disease?
A. Attachment and disruption of intestinal lining due to parasitic infection B. Bacterial colonization and toxin production C. Bacterial adherence and invasion D. Performed bacterial toxin E. Replication of virus that prevents reabsorption of water