I am pretty sure it is the trichromatic theory because all or nothing is about neurons, opponent process wouldn't be it, Rod and cone is about the light we take in the colour etc. I would go for trichromatic. not 100% though
Answer:
True
Explanation:
It's True
There can be phases of sleep, one of them is the phase of REM or Rapid Eye Movement, once we reach this stage of active sleep, and our muscles lose tonality, making it very difficult to maintain a sitting position. Our shoulders continue to stretch or slip to the other side as we sit upright, which can cause pain. There are also other concerns but it should also be remembered that an adult needs to sleep upright under certain circumstances.
Modern foragers are not Stone Age relics, living fossils, lost tribes, or noble savages. Still, to the extent that foraging has been the basis of their subsistence, contemporary and recent hunter-gatherers can illustrate links between foraging economies and other aspects of society and culture, such as their sociopolitical organization.
Answer: Option C
<u>Explanation:</u>
In the history of human beings on this planet, hunters-gatherers hold the longest history. Even today there are many societies where people rely on foraging for their sustenance and survival and have not adapted to the modern ways of civilised societies.
These modern foragers do not stuck in time and living the life of early man but they have developed well organised social and political structure for themselves. They possess their own culture and rituals to follow and their tribe issues are decided by the well-established political system.
Answer:
i will tell you its not D cuz i got it wrong
Explanation:
