Which of the following metabolisms is NOT found in Archaea?
A) photosynthesis
B) chemolithotrophy
C) chemoorganotrophy
D) aerobic respiration
Answer: A
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Retired football players are _____ times more likely to die of neurodegenerative brain damage than the general public
a. three b. four c. five d. six e. ten
Which cellular structure is the "shipping center", responsible for packaging materials with the cell?
a) Golgi apparatus b) chloroplasts c) ribosomes d) mitochondria
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
Which of the following statements about animal connective tissues is true?
(a) Enzymes embedded in the plasma membrane synthesize the collagen in the extracellular matrix extracellularly. (b) In connective tissue, the intermediate filaments within the cells are important for carrying the mechanical load. (c) Cells can attach to a collagen matrix by using fibronectin, an integral membrane protein. (d) Proteoglycans can resist compression in the extracellular matrix.