it is none of those it is scientists
Most protein concentrate is dried whey powder. Whey is the liquid left from milk when making cheese. However some uses soy protein instead as some people are allergic to dairy products.
Hurricanes and tornadoes can damage or destroy homes, businesses, crops, and livestock. People may be killed or injured. Many people loose electricity.
phenylalanine
fishing
Because it saves time and space
To grow food and raise livestock and all that livestock.
Because people weren't around to gather them and make them 'livestock'.
They were a people, not a civilization. or efficient Efficient
Agriculture is more efficient because in the energy pyramid they're producers while when you raise livestock they get less the energy when they eat producers. Livestock produces less food energy. Agriculture produces more because when you plant you get more of the nutrients to the vegetable or fruit. If livestock they consume the producer and get less of the energy because when the animal loses the energy it goes to the environment as heat and some energy are stored to the previous level
herding livestock
Mongolia
Live stock is a major source of income for people living in rural areas.
The prospects of livestock in Nigeria are great because the large amount of live stock in Nigeria ,but because the people are so poorly educated the heath care of the livestock is plummeting.
It certainly helps when a person is orderly and efficient. But many people are creative, not orderly. To demand everyone be "efficient" ignores the diversity of skills among people.
Many parasitic worms are in the aschelminthes family. Livestock infected with parasitic worms is seldom as productive or efficient as animals that have not been infected. People who are infected suffer the same consequences, as energy derived from food is directed to feeding the parasites.
The square kilometer of livestock would feed more people, but it would require more energy to obtain.
I personally use VLC Media Player. But this website lists 10 of the best video converters and players: http://lifehacker.com/316478/top-10-free-video-rippers-encoders-and-converters. I know many people who also use QuickTime as well.