Which structure in plants acts most like embryonic stem cells in animals?
What will be an ideal response?
meristem
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Which of the following statements is typically false?
A. DNA is double stranded, whereas RNA is single stranded. B. The process that goes from RNA to protein is called translation. C. The process that goes from DNA to RNA is called transcription. D. DNA contains the same nucleotides as RNA.
Which of the following choices is not a mechanism by which enzymes generally speed reactions?
a. orienting substrates in favorable positions b. helping substrates get together c. permanently donating a proton or electron to the reaction d. inducing a fit between enzyme and substrate
The earliest hominids used tools to
a. assist in locomotion. b. provide protection. c. facilitate the processing of food. d. ward off predators. e. construct shelters.
The cephalic end of an animal is toward its head
____________________ Indicate whether the statement is true or false.