In which way are photosynthesis and cellular respiration related?
a. They both store heat.
b. They both release oxygen.
c. They both store energy.
d. They both use the waste material of the other.
Answer: d. They both use the waste material of the other.
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The methanogens
A. are part of the Domain Archaea. B. oxidize hydrogen gas to produce methane. C. appear only in aerobic environments. D. use oxygen as a terminal electron acceptor. E. are part of the Domain Archaea AND oxidze hydrogen gas to produce methane.
What features are associated with the leaf epidermis? Check all that apply.
_____ Guard cells. _____ Trichomes. _____ Cuticular wax. _____ Pores. _____ Tracheids.
Which of the following is true regarding current scientific thought?
a. DNA originated before RNA. b. RNA originated before DNA. c. RNA and DNA originated at the same time. d. RNA and DNA are the same thing.
Which of the following processes is most likely responsible for many mammals having multiple hemoglobin genes?
a. a reciprocal translocation b. a duplication c. an inversion d. a deletion