Is a ribozyme a true enzyme?
a. Yes, because it is a catalyst.
b. No, because it is not a protein.
c. No, because it cannot catalyze a reaction.
d. Yes, because it can synthesize a protein.
e. No, because it doesn't require cofactors.
B
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Some protists use multiple fission (cell division preceded by several nuclear divisions) as a means of reproduction. Multiple fission is also referred to as
A. budding. B. zygotic meiosis. C. schizogony. D. syngamy. E. intermediary meiosis.
A(n) ____ includes the community and the nonliving environmental factors with which it interacts
a. community b. biosphere c. ecosystem d. multicellular organism e. earth
The integumentary system is most involved in ____
a. exchange of gases b. support c. outer body covering d. muscle contraction e. resistance
Experiments that attempt to simulate conditions on early Earth have produced results that hint at the possible origins of life. What have the experiments produced?
What will be an ideal response?