Explain why metabolic efficiency is a key factor in obesity
What will be an ideal response?
Answer: Animals vary in their capacity to store ingested energy as fat. Some animals are very efficient in that ingested energy can be stored as fat for later use, e.g., during a famine. Other animals are less efficient and waste some portion of ingested energy (e.g., thermogenesis or activity); these animals are less likely to develop obesity in times of abundant food.
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Research investigating the division of labor among gay and lesbian couples shows that
b. both gay men and lesbians adopt traditional husband-wife roles c. the division of labor in these couples is often unbalanced, but not in stereotypical heterosexual ways d. gay men and lesbians tend to have a balanced division of labor
With modern science, most causes of birth defects are known and understood
Indicate whether this statement is true or false.