You go to the movies with a friend, and he refuses to share your popcorn. He says that he heard that movie theatre popcorn is triploid. What is the most likely explanation for this?
A. All popcorn is triploid, because the starchy part of the kernel is triploid endosperm tissue.
B. The buttery topping on movie theatre popcorn causes chromosomal abnormalities.
C. Most corn is genetically modified by large agricultural companies.
D. Popcorn is made from a different species of maize than regular corn.
Answer: A
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Gingko trees are known to lose their leaves at a certain time each year throughout the United States. Based on this information, Gingko trees in China must behave the same way. These statements are an example of:
A. inductive reasoning B. deductive reasoning C. a theory D. an experiment
Four of the five processes listed below promote
transpiration. Select the exception. a. potassium ions pumped into guard cells b. turgor pressure building up in guard cells c. photosynthesis occurring in guard cells d. carbon dioxide entering leaf e. activity of abscisic acid
Secondary spermatocytes are produced in the first meiotic division. Indicate whether the statement is true or false
Which of the following structures is responsible for the control of the heartbeat and blood pressure?
a. pons b. hypothalamus c. medulla d. cerebellum e. thalamus