The "green revolution" refers to:
a. the global intensification of agricultural production.
b. the political struggles in Ireland.
c. the change in the distribution of worldwide poverty.
d. the expansion of forests worldwide.
e. the global environmental movement.
Ans: a. the global intensification of agricultural production.
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Which of the following is NOT a principle used when analyzing cladograms?
A. All species, or higher taxa, are placed on tips in a phylogenetic tree. B. All species, or higher taxa, are placed on nodes in a phylogenetic tree. C. Each cladogram branch point should have one or more shared derived characters that are common to all species above the branch point, unless the character is later modified. D. All shared derived characters appear together only once in a cladogram unless they arose independently during evolution more than once. E. All species, or higher taxa, are placed on tips in a phylogenetic tree and all shared derived characters appear together only once in a cladogram unless they arose independently during evolution more than once.
Which of the following is not a function of the root of a plant?
A. Anchor the plant. B. Produce energy that the plant can use to carry out metabolism. C. Absorb water. D. Absorb mineral nutrients for the plant. E. Form beneficial relationships with microorganisms, thereby increasing the plant's ability to obtain nutrients.
Startle coloration is used to attract mates
Indicate whether the statement is true or false
A frameshift is caused by ________ mutations?
A. deletion and insertion B. insertion and nonsense C. missense and insertion D. missense and nonsense E. nonsense and deletion