A scientist discovers an unidentified organism that is composed of multiple cells and has a membrane-bound nucleus. Of the choices listed, the most likely classification would be ________
A) Archaea
B) Bacteria
C) fungi
D) Any of the above could be correct.
C
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At the pH of most bodily fluids, which functional group will lose a proton and which functional group will accept a proton?
A. sulfhydryl; carbonyl B. Hydroxyl; amino C. amino; carboxyl D. carboxyl; amino E. carbonyl; Hydroxyl Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean? Gather Content · What do you know about functional groups? How does it relate to the question? Consider Possibilities · What other information is related to the question? Which information is most useful? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? 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 bird’s nest fungus utilizes __________ to distribute its spores
a. insects b. rain c. wind d. all of these
Worldwide, ____ are often used as pollution-monitoring devices
a. fungal infections b. mycorrhizae c. lichens d. yeast e. mushrooms
Langur monkeys and ruminants (such as cows) are the only known mammals in which lysozyme functions in the stomach instead of in tears and saliva. The cow/langur enzyme also has five amino acid changes that are not present in other mammals. What is most likely to be true about lysozyme from langurs and cows compared to lysozyme from other mammals?
A. These five amino acid changes alter the specificity of the enzyme, such that the cow/langur lysozyme attacks viruses instead of bacteria. B. These five amino acid changes somehow make the cow/langur lysozyme resistant to pepsin digestion. C. Salivary and tear lysozyme functions best at a higher H+ ion concentration than the cow/langur enzyme. D. The five amino acids that langurs and cows have in common in their lysozyme were present in the common ancestor of all mammals.