You are in free guest mode.
Timed Practice
Revision List
Attempt History
Progress Tracking
Create a free account to unlock these tools
Practice Listening: Fill in the Blanks (Type In)
ID: #4016
Short
Food
* Fill in the missing words into the blank fields
Food is the body’s fuel. Now a study finds that the amount of energy in that can depend not just on its calorie content - but on how it’s prepared. And the research, published in the Proceedings of the National Academy of Sciences, could explain an leap in human evolution. Food’s energy value is usually measured before consumption. But Harvard scientists fed two groups of mice either meat or sweet potatoes and prepared the items differently: either whole or , raw or cooked - to create a variety of diets. The researchers then the mice. They found that pounded meat and potatoes caused more weight gain than raw food. And that cooking increased weight the most. The extra calories cooking makes available may have allowed the of humans with larger bodies and more complex brains, starting almost two million years ago. Those physical changes required more energy, and food to fire may have provided that boost. Of course, a of evolution is that modern humans often gain too much weight. Which might be called a raw deal.
Result:
With a free account:
Retry and compare every attempt.
Be the first!
No community answers here yet — submit yours and help others learn.
Saving...