During an El Niño event, the waters of the eastern Pacific Ocean are unusually ________
Fill in the blank(s) with correct word
warm
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Secondary succession is likely to occur ____
a. in a newly formed volcanic island b. in an abandoned field c. in a mature forest d. on land exposure by glacier retreat e. on land with little to no soil
After three replications of a single DNA molecule,
what percent of the resulting molecules contain one strand of the “original” DNA? a. 0 percent b. 25 percent c. 50 percent d. 75 percent e. 100 percent
Many cases of pediatric thyroid cancer occurred after the 1986 Chernobyl nuclear accident in Ukraine and the cause was traced to milk containing iodine-131
Which of these might be the most effective method to prevent thyroid cancer increase following exposure to excessive radiation? A) Do not allow anyone to drink any milk. B) Give dairy cows large doses of iodine. C) Give humans large doses of iodine before exposure. D) Give people large doses of iodine a few days following exposure.
Beginning with BSL-2 and beyond, which type of equipment must be accessible for decontamination of biohazardous waste generated in the lab?
A) Refrigerator B) Incubator C) Sink for handwashing D) Safety shower E) Autoclave