Mendel's work proved the blended nature of inheritance.
a. true
b. false
b. false
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William Calvin speculates that language developed __________
a. along with throwing behavior b. as a replacement for grooming c. in order to maintain exclusive sexual relations d. initially as sign language
Lemur species __________
a. are all nocturnal b. eat only fruit c. range in size from 2 ounces to 20 pounds d. can be found from Africa to India
The discussion of skin color in this chapter shows that common ancestry, the presumed basis of race, is the cause for biological similarities among groups in different parts of the world.
a. true b. false
Match the concept with its definition:
1. hypothesis 2. empirical 3. theory 4. control 5. variable received through the senses an informed supposition about the relationship between variables a situation that differs from the situation being tested any property that may be displayed in different values framework that explains facts