Ethanol can be easily produced from:a
photosynthetic pigments.
b. crystalline cellulose.
c. root systems of plants.
d. plant sugars.
e. all of these.
Answer: d
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________ is a common name for green photosynthetic protists.
Fill in the blank(s) with the appropriate word(s).
Two bird species have different mating calls, occupy different habitats in nature, and when they hybridize, the hybrids are infertile. Which isolating mechanisms maintain these species?
A. ecological isolation, behavioral isolation, and hybrid sterility B. mechanical isolation, hybrid sterility, geographical isolation C. ecological isolation, mechanical isolation, hybrid sterility D. geographical isolation, temporal isolation, behavioral isolation Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content · What do you already know about reproductive isolation? 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?
Compare and contrast a single, weak contraction of a muscle fiber, a twitch summation, and tetanus
What will be an ideal response?
What is the structure labeled F in the accompanying figure?
A. Cytoplasm B. Nucleoid C. Plasma membrane D. Capsule E. Pilus