The eighteenth-century biologist Comte de Buffon:
A. argued that the earth was the center of the universe
B. believed that living forms are immutable
C. proposed that the earth is much older than 6,000 years
D. developed a classification of the living world that is still used today
C. proposed that the earth is much older than 6,000 years
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_________ is produced primarily in the testes and ovaries but is known as the "male hormone."
a. Progesterone b. Dopamine c. Estrogen d. Testosterone
Informed consent refers to
A. U.S. anthropologists' signed commitment to the American Anthropological Association that they will abide by the organization's laws and regulations. B. a host country's leaders' agreement that the specified research is to be carried out. C. people's agreement to take part in research after they have been fully informed about its purpose, nature, funding, procedures, and potential impact on them. D. a coercive agreement between anthropologists and study participants that characterized much of the dubious and unethical research practices of the past. E. a signed contract between anthropologists and their academic institutions regarding the potential monetary value of the data they will collect in the field and how they will safeguard it.
Why is traditional agriculture more energy efficient than high-tech agriculture?
a. Traditional agriculture uses high yield strains of crops. b. Traditional agriculture relies on the muscle energy of humans and animals. c. With traditional agricultural practices, more energy is used to produce fewer calories of food. d. It is not; indigenous peoples merely think it is.
Which of the following protects skin against damaging ultraviolet solar radiation?
a. Aloe b. Coconut oil c. Melanin d. Vitamin D e. Lactase