<span>Before the coming of farming, people gained their food by foraging for nuts, berries and insects, hunting wild game, large and small, and fishing. </span>
A few hunter-gatherer peoples survive to this day, but the world of the hunter-gatherers, in which most ancient people followed this mode of life, is long gone. It disappeared in the millennia following 10,000 BC, as farming and pastoralism gradually spread across the world.
Answer: Delaware Bay's Horseshoe Crab population has declined by 90% over the last 15 years, mostly due to overharvesting and habitat degredation.
<span> Energy exists in two states; potential energy and kinetic energy. </span>
The remaining solid residue might contain explosive peroxides. The empty glassware might heat quickly, igniting vapors from the distillation. Before turning on the heat for a microscale distillation, what should you confirm about the set-up?
Answer:
The correct answer is random assignment refers to researchers allocation of participants to groups by chance, to reduce the likelihood that an experiment results will be due to preexting differences between groups.
Explanation:
Random assignment is a tecnhique of choosing or allocating persons or resources to different groups.