How a researcher describes the procedure that will be followed to measure a variable is __________
A) the operational definition
B) the theory
C) the hypothesis
D) only a guess
A
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What are the main taxonomic categories of the primates? What are some of the distinguishing features of each category?
What will be an ideal response?
________ was the first individual to clearly lay out a theory of evolution.
A. Erasmus Darwin B. Cuvier C. Lamarck D. Charles Darwin
Domestication affects the reproduction of plants because
A. domesticated cereals have more brittle axes, allowing seeds to break free from the stalk more easily. B. plant reproduction cannot occur without farming. C. domesticated plants do not produce seeds. D. domesticated plants lose their natural seed dispersal mechanisms. E. domesticated plants reproduce themselves more effectively.
The Neandertal head is characterized by __________
a. a pentagon shape when viewed from behind b. a small juxtamastoid eminence c. a lack of an occipital bun d. all of these