A secondary plant compound might be used for which of the following?
a) a new crop variety
b) a new drug
c) a soil nutrient
d) a crop pest
Ans: b) a new drug
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The first complex multicellular life forms with appendages, etc., appeared on Earth about 0.5 billion years ago during the
a. Jurassic Period. b. Mississippian Period. c. Cambrian Period. d. Precambrian Period. e. Neolithic Period.
A Class 4 hurricane is centered over Bermuda (latitude 32.20 N) and is moving eastwards. Which coastal city on the eastern coast of the United States is in the most peril from its approach?
a. Savannah, GA (latitude 32.08 N) b. Jacksonville, FL (latitude 30.32 N) c. Wilmington, NC (latitude 34.23 N) d. Boston, MA (latitude 42.36 N)
How do fossils provide evidence of evolution?
a. Fossils show the progression of anatomical changes that resulted in new species. b. Fossils show us when a species has died off and where the species was located. c. Fossils show us where a species lived during its existence. d. Fossils provide no evidence for evolution, only natural selection.
The use of _____ is associated with an increased risk of transmitting genetic defects, such as those related to
infertility, onto male children. a. IVF b. GIFT c. IUI d. ZIFT e. ICSI