One key adaptation of animals was the evolution of a(n) _____, a fluid-filled gap between the outer wall ofthe body and the outer wall of the digestive system
Fill in the blank(s) with the appropriate word(s).
Answer: body cavity
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The building blocks of DNA are called
A. acids. B. proteins. C. bases. D. nucleotides.
Interpret the pedigree in the accompanying figure by describing each symbol and number. How might the information from this pedigree be used by clinicians and researchers? What will be an ideal response?
Plasmolysis occurs in plant cells when the soil or water contains low concentration of salts or
fertilizers. __________________ Indicate whether the statement is true or false.
A phenol red glucose broth with a Durham tube has been inoculated and incubated. After 48 hours, the broth is turbid and bright yellow and approximately half of the contents of the Durham tube contains bubbles. Interpret these results.
a. The organism will ferment lactose as well. b. The organism is fermenting glucose. c. The organism is an obligate anaerobe. d. The organism is fermenting lactose and producing ethanol and CO2.