Given below are 3 keywords: Residential, Crayfish, Aggression Using Boolean operates (AND, OR, NOT), which of the following combinations will give you the maximum number of hits/results after you perform a literature search on the Web of Science?
A. Residential NOT Crayfish AND Aggression
B. Residential OR Crayfish NOT Aggression
C. Residential AND Crayfish AND Aggression
D. Residential OR Crayfish OR Aggression
Ans: D. Residential OR Crayfish OR Aggression
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Answer the following statement true (T) or false (F)
The Precambrian supereon, in which life first appeared and diversified to multicellular eukaryotes, lasted approximately ___ of the geologic timescale.
A. 50% B. 30% C. 15% D. 85% E. None of the answer choices is correct.
Which of the following characteristics does not apply to water?
A) all three atoms in the water molecule ready form hydrogen bonds B) Water is an excellent solvent C) The water molecule is asymmetric D) The water molecule readily forms hydrophobic interactions E) The covalent bonds in water are strongly polarized
A new plant species may arise in a single generation by
A) errors in meiosis leading to polyploidy. B) a sudden geological disruption causing separation of two populations. C) mutations in genes for flower color. D) changes in the pollinator species.