Breathing begins with inhalation when the contraction of the diaphragm flattens on contraction, pulling the lungs down. The contraction of these muscles increases the volume of the lungs. This reduces the air pressure in the lung to below that of the external air. This pressure difference forces air to move into the lungs where gas exchange occurs. The relaxation of the diaphragm and intercostals reduces the volume of the lungs, which then increases the air pressure inside the lung to that above the external air. This forces air out of the lungs. The cycle goes on and on. Hope this helped!
The land structure, being flat or with hills. Could provide a lack or increase of defense, hills being used as a shield. Bodies of water have been used to hide out, but also provide drink to soldiers, foggy weather can make it difficult to see the enemy.
Answer:
b. their members can have the exact same values and behavior patterns as the core culture.
Explanation:
Idn't Spain have more colonies in Africa?
OK. During the era of exploration, the Portuguese were sailing around the coast of Africa and began their colonies in Mozambique, Angola, Guinea-Bissau, Cape Verde and Sao Tome y Principe. By the 1500's, Spain was preoccupied by explanding their empire in the Americas. Africa was then ignored for centuries before the introduction of quamine, which allowed Europeans to travel inland in Africa without dropping like flies from malaria. Hence, in the 1870's the scramble for Africa began! The British and French, the two largest Western powers of the day, took the most land in Africa. Germany too took colonies...Cameroon, Tanzania, Togo and Namibia were German colonies before WWI. Even Belgium took the Congo (they actually began the Scramble for Africa after circumnaviagting the Congo River). After WWI, they would also take Rwanda and Burundi from the Germans.
