1. Insects contain more protein and less fat than most other meat, as well as a high number of micronutrients. They are also physiologically efficient and require little food to develop on. Their environmental impact is minimal and their reproduction rate is high.

2. He means that insects require little food to survive, as well as being able to save a substantial amount of energy and resources by their ability to get heat from the surrounding environment.

3.

Informal tone: “As an entomologist, the notion of eating insects isn’t new to me. However, for most Americans, the thought can make their stomachs churn.”

Scientific tone: “As director of USDA’s National Institute of Food and Agriculture (NIFA), my goal is to ensure that the science we invest in leads to solutions to today’s most pressing challenges. One of those challenges relates to our world’s growing population, which is expected to exceed 9 billion by 2050.”