Long-lasting pesticides such as DDT
a. are target-specific.
b. are the most effective control over pests.
c. build up in concentration as they pass through a food chain.
d. break down after the organism that receives the pesticide dies.
e. are used only for termite control.
C
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How would you expect the root system of a plant grown by hydroponics to compare to the root system of a plant grown in soil? The root system of a plant grown by hydroponics would be _____
A) more developed B) less developed C) about the same D) absent
What is the correct order of these events in recombination that is resolved by the crossover pathway?
1. Double-strand break formation 2. Strand invasion 3. Resection 4. Resolution of the double Holliday junction 5. Branch migration 6. Formation of a double Holliday junction A) 6, 1, 2, 5, 3, 4 B) 1, 2, 5, 3, 6, 4 C) 6, 4, 1, 2, 5, 3 D) 1, 3, 2, 6, 5, 4 E) 1, 2, 3, 5, 6, 4
Which molecule is not directly involved in the process of translation?
A) ribosome B) tRNA C) mRNA D) DNA
Which statement(s) concerning root hairs is/are correct? Select all that apply.
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