Based on the endosymbiosis theory, which of the following used to be a free-living prokaryote?
a. mitochondria
b. rough endoplasmic reticulum
c. peroxisomes
d. ribosomes
a. mitochondria
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The initial stages of the inflammatory response are characterized by
A. the release of cytokines. B. vasodilation. C. leukocyte movement through the capillary wall. D. the release of nitric oxide from endothelial cells. E. All of these statements are correct.
A patient suffers from a disease that slows fatty acid synthesis. What is a likely impact of this disease on nervous system function?
A. improved functioning due to a healthier weight B. insufficient myelination and slow axon conduction rate C. improved functioning due to better blood flow D. weaker action potentials with smaller depolarization Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content/Choose Answer · What do you already know about fatty acids? What other information is related to the question? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
The hormones that exercise control over urine concentration affect:
a. Bowman's capsule b. the proximal tubule c. the distal tubule d. the loop of Henle e. the urinary bladder
All components of a muscle have ____ orientation, resulting in ____
a. the same; a concerted pull in the same direction b. the same; a concerted push in the same direction c. a random; a dispersion of force d. a random; a concentration of force in the center of the muscle e. the same; a concentration of force in the center of the muscle