For eukaryotes, transcription takes place in the
a. nucleus.
b. nucleolus.
c. cytoplasm.
d. plasma membrane.
e. nucleus and cytoplasm
A
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Agar is an excellent solidifying agent for microbiological media because
A. it is not degraded by most microorganisms and solid agar remains solid until the temperature is raised to 90°C, and liquid agar remains liquid if the temperature is lowered to 45°C are correct. B. it is not degraded by most microorganisms. C. solid agar remains solid until the temperature is raised to 90°C, and liquid agar remains liquid if the temperature is lowered to 45°C. D. agar provides an excellent source of nutrition for a variety of different microorganisms.
Aerobic refers to what property of chemotrophs?
A) Chemotrophs remove carbon dioxide from the air. B) Chemotrophs require oxygen to produce energy. C) Chemotrophs use, but do not require oxygen. D) Fermentation releases great amounts of gas but only in chemotrophs. E) Heat losses occur in the presence of oxygen.
Despite dramatic differences in appearance, size, and behavior, you are surprised to find that two organisms you have been studying are able to reproduce successfully, and produce fertile offspring. Which of these choices is the largest taxonomic category that these two organisms share in common?
a. subspecies b. species c. family d. genus
Two closely related species that fail to recognize the courtship behavior of each other are said to be ________ isolated.
Fill in the blank(s) with the appropriate word(s).