A (Coulter/Petroff-Hauser chamber/spectrophotometer) counter is used to count cells on a light microscope
What will be an ideal response?
Petroff-Hauser chamber
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The final product of DNA replication is:
a. mRNA, tRNA, and rRNA molecules. b. a wide variety of proteins. c. DNA fragments. d. two DNA molecules, each of which contains one new and one old DNA strand. e. the enzymes needed for further processes, such as DNA polymerase.
Some species of sharks, rays, and bony fish sense the movement of prey through the use of:
a. electroreceptors. b. mechanoreceptors. c. thermoreceptors. d. interoceptors. e. nociceptors
Irregular dental hygiene and a high sugar diet may led to tooth decay. Why?
A. Bacteria consume calcium. B. Glucose forms a weak acid when dissolved in saliva. C. High concentrations of sugar soften the tooth enamel. D. Lactic acid fermentation is used to generate ATP under anaerobic conditions. E. Plaque degrades the tooth's protective mucosal layers.
During one cycle, the sodium-potassium pump binds and moves:
What will be an ideal response?