Make/produce and secrete hormones
Answer:through carbon cycle
Explanation: look up for the word and also look at the diagrams for better understanding
Answer: Option A
The three positions that nations occupy in the world system are core, periphery, and semi-periphery.
Explanation:
World system is a multidisciplinary method to social change and world history which is use stress the system of the world as a unit of social analysis. It is an international system that divide nations of the word according to their labor into core, periphery and semi -periphery. The core have high skill labor and high production cost compare to the others. The core countries dominate and use the periphery countries. The periphery countries also depend on the core countries for capital.
Arterial blood pressure is the volume of the blood entering the arteries, or veins. It's controlled by the kidney and when there's too much liquid, it rises, and when there's too little liquid, it drops. Sorry if this doesn't help, but I hope it does.
Because we can’t tunnel down, so in order to study the interior layers, we must use indirect methods.