A decrease or increase of a certain population can affect the food chain of an ecosystem
Lets say bugs start dying at a rapid rate in an swamp ecosystem
The frog population would then decrease because they have no bugs to eat
The frog’s predators would then decrease because of the number of frogs to eat are decreasing.
So on and so forth.
Hope this helps!
Answer:Hunting and gathering society.
Hunting and gathering society is a type of society where dwellers rely majorly on hunting for wild animals andgathering of foods ,nuts and vegetables for survival.Ten thousand years ago,all societies practices hunting and gathering to provide food on their tables until there were initiatives on how to cultivate crops and rear animals.
Explanation:
Answer:
1. represent objects with words and images.
Explanation:
Preoperational stage: In psychology, the term preoperational stage is one of the main parts or stages in the theory of cognitive development which was proposed by Jean Piaget and consists of a total four distinct stages.
The preoperational stage starts at the age of two years and lasts through seven years and is considered as the second in Piaget's theory. At this stage, a child starts or initiates talking, learns to manipulate different symbols, irreversibility, and engages in symbolic play.
The American Indians of the north west used totem poles as a wood carving tool