Imagine a bird species in which many individuals spend their first summer of adulthood helping other members of the population raise offspring instead of breeding themselves. Which of the following explanations is MOST consistent with the hypothesis that helping behavior evolved by kin selection? O Populations with a high frequency of helpers send out more migrants than populations in which all individuals breed in their first season of adulthood. O Individuals that help relatives feed their young produce fewer of their own offspring in a lifetime than individuals that begin breeding in their first year of adulthood. O Helpers learn to forage more efficiently by observing kin than non-kin. O Helpers more frequently direct their assistance toward aunts and uncles than toward full siblings.

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Nutrition and diet

We are involved in several daily activities. These actions need a significant quantity of energy. The food we eat provides this energy. Food is necessary for development, repair, and other living activities since it supplies energy. All of these are part of the living practice known as nutrition. Nutrition is the study of nutrients in food, how the body uses them, and the relationship between diet, health, and disease. Nutritionists employ concepts from molecular biology, biochemistry, and genetics to understand how nutrients affect the human body. Nutrition also looks at how people can use their diet to reduce their risk of disease, as well as what happens when they ingest too much or too little of a nutrient and how allergies emerge.