Answer: the introduction of new crops from the Americas
Explanation:
The rapid population increase in China in the seventeenth and eighteenth centuries was due to the introduction of new crops from the Americas.
Food crops like maize, tomatoes, sweet potatoes, beans etc were brought into China which led to major developments accompanied with migration and population growth.
Answer:
The definition of the particular circumstance is demonstrated in the following summary segment.
Explanation:
- The unrestricted immigration, which will also lead to increased ethnic or cultural differences as well as increases of ethnic communities, would have been one societal consequences.
- Yet another economic effect would have labor supply problems that would lead to worker shortages as well as elderly recruiting.
Answer:
The nervous system uses cell-communication by electrochemical signals that hormones, neurotransmitters or cytokines
Explanation:
Cell communication is vital to maintain internal environment thanks to homeostasis process which regulates the responses to internal and external stimulus. The functioning of cells depends on the electrochemical signals, these allows the communication and coordination among a group of cells of the tissue.
There are different type of loop-responses:
Negative Feedback Loops;
Reaction that causes a decrease in function, in response to some stimulus. The maintenance blood pressure, blood pH, oxygen/carbon dioxide balance, water balance (osmoregulation),calcium levels, among others are examples of negative feedback loops.
Positive Feedback Loops
Are involved in the amplification of the stimulus. D
Answer: Your answers are in the pics below.
Explanation:
It’s not good because the snakes kill rodent the might eat or destroy the livestock
