A hormone that causes cell division and is found in coconut milk and in dividing root tissue is
A. ethylene.
B. cytokinin.
C. gibberellin.
D. abscisic acid.
E. auxin.
Answer: B
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The amount of energy required to raise the temperature of 1 kilogram of water by 1° Celsius is a
A. joule. B. None of the answer choices is correct. C. kilocalorie. D. calorie. E. measure of density.
What is the term for a genetic change in a line of descent over time?
a. speciation b. transformation c. reproduction d. evolution e. mutation
What is the correct sequence for the start of an organism's life cycle?
A) fertilization ? meiosis ? zygote ? embryo B) meiosis ? fertilization ? zygote ? embryo C) fertilization ? zygote ? meiosis ? embryo D) meiosis ? fertilization ? embryo ? zygote
Ebola hemorrhagic fever is caused by which type of virus?
A. filovirus B. rhabdovirus C. paramyxovirus D. rubulavirus E. pneumovirus