What are the 4 types of diffusion AP Human Geography?
Expansion Diffusion
- Contagious Diffusion.
- Hierarchical Diffusion.
- Stimulus Diffusion.
What does diffusion mean in AP Human Geography?
Diffusion: The process of spread of a feature or trend from one place to another over time. Relocation diffusion: The spread of an idea through physical movement of people from one place to another.
How did plants and animals diffuse globally?
Explain how plants and animals diffused globally. Patterns of diffusion, such as the Columbian Exchange and the agricultural revolutions, resulted in the global spread of various plants and animals.
What type of diffusion is agriculture?
Social diffusion refers to the spread of an innovation from its originating sources (in the case of new farm practices usually agricultural scientists) among a group of potential users.
What are the 3 different types of diffusion?
The three types of diffusion are – simple diffusion, osmosis and facilitated diffusion.
- (i) Simple diffusion is when ions or molecules diffuse from an area of high concentration to an area of low concentration.
- (ii) In osmosis, the particles moving are water molecules.
What are the 5 types of diffusion?
Relocation, expansion, contagious, hierarchical, and stimulus diffusion.
What is an example of diffusion in geography?
Expansion diffusion is when innovations spread to new places while staying strong in their original locations. For example, Islam has spread throughout the world, yet stayed strong in the Middle East, where it was founded.
How did the first agricultural revolution diffuse?
About 12,000 years ago, people living in Southwest Asia began to grow crops and raise animals intentionally. From there, agriculture diffused throughout the world. Since 1750, mechanization, the use of chemicals, and research have increased agricultural productivity, allowing more people to work off the farm.
How has agriculture developed and diffused?
New hearths of innovation appeared as people developed new agricultural techniques, from systematic irrigation to metal plows, and those innovations were diffused through migration and cultural contact. In the modern world, we can see this through the diffusion of industrial and scientific farming techniques.
When did vegetative planting diffuse?
– He suggested that Southeast and South Asia may have been where the first tropical plant domestication occurred, more than 14,000 years ago. – The earliest form of plant cultivation was vegetative planting, direct cloning from existing plants, such as dividing roots and cutting stems.
How was agriculture diffused?
The Spread of Farming Modern genetic techniques suggest that agriculture was largely spread by the slow migration of farmers themselves. It also seems clear that in some times and places, such as in northern South Asia, it was spread by the passing on of agricultural techniques to hunter-gatherers.
What is plant diffusion?
“Diffusion is the process of movement of molecules from a region of higher concentration to a region of lower concentration.” Diffusion in Plants. Diffusion is a very important process for photosynthesis where carbon dioxide from the stomata diffuses into the leaves and finally into the cells.
What are the different types of diffusion in human geography?
The three main types of this phenomenon are expansion diffusion, stimulus diffusion, and relocation diffusion.
What are the two main types of diffusion in human geography?
There are six types of cultural diffusion: Contagious Diffusion. Hierarchical Diffusion. Stimulus Diffusion. Maladaptive Diffusion.
How did the Green Revolution diffuse?
Due to the success of the Green Revolution in Mexico, its technologies spread worldwide in the 1950s and 1960s. The United States, for instance, imported about half of its wheat in the 1940s but after using Green Revolution technologies, it became self-sufficient in the 1950s and became an exporter by the 1960s.
What is plant domestication AP human Geography?
Plant domestication: The process by which wild plants are cultivated into productive crops, often with more desirable traits.
Where did vegetative planting diffuse to?
Vegetative planting diffused from the Southeast Asian hearth northward and eastward to China and Japan, and westward through India to Southwest Asia, tropical Africa, and the Mediterranean lands.
How did the first Agricultural Revolution diffuse?
About 12,000 years ago, people living in Southwest Asia began to grow crops and raise animals intentionally. From there, agriculture diffused throughout the world. Since 1750, mechanization, the use of chemicals, and research have increased agricultural productivity, allowing more people to work off the farm.
What are some examples of diffusion in the plant world?
The examples of diffusion in plants are:
- The uptake of water and nutrients from the soil by the roots.
- The distribution of nutrients and water to all the parts of the plant.
- Diffusion of Carbon Dioxide into the leaf of the plants during photosynthesis.
- Release of oxygen out of the stomata of the leaf.
What are some examples of diffusion in plants and animals?
Expert-verified answer Examples of diffusion in animals are: Digested food molecules such as amino acids and glucose move down a concentration gradient from the intestine to the blood. Waste products such as carbon dioxide or urea travel by diffusion from body cells into the bloodstream.
What are the 3 types of diffusion?
The three types of diffusion are – simple diffusion, osmosis and facilitated diffusion.
- (i) Simple diffusion is when ions or molecules diffuse from an area of high concentration to an area of low concentration.
- (ii) In osmosis, the particles moving are water molecules.
What are 3 examples of cultural diffusion?
Common Cultural Diffusions For example, jazz started as a blend of the music of Africa and the Caribbean. Southern cities in the United States, especially border towns, have signs in both English and Spanish. The popularity of sushi, a traditional Japanese dish, shows diffusion of Japanese cuisine.
What type of diffusion is the green revolution?
The Green Revolution was the rapid diffusion of new agricultural technology. The Green Revolution involved two main practices: new higher-yield seeds and expanded use of fertilizer. Higher-yield seeds were used to produce a higher-yield form of wheat.
What is domestication of plant?
Domestication is the process of adapting wild plants and animals for human use. Domestic species are raised for food, work, clothing, medicine, and many other uses. Domesticated plants and animals must be raised and cared for by humans. Domesticated species are not wild. Plant Domestication.
What is an example of a domesticated plant?
Examples of domesticated plants and a region that domesticated them include wheat and barley in the Middle East, the potato in South America, and millet and rice in China. Plants that are grown for consumption are known as crops, while plants used for aesthetic purposes indoors are houseplants.
Where do diffusion occur in plant?
The higher concentration of carbon dioxide in the air around the plant causes the gas to move into the leaf by diffusion. It diffuses through small pores called stomata. The stomata are mainly in the lower epidermis (the underneath surface) of leaves. During photosynthesis, oxygen levels inside the leaf increase.
What is an example of diffusion in plant?
In order to carry out photosynthesis a plant requires carbon dioxide. On the underside of leaves there are small holes known as stomata, carbon dioxide diffuse into the leaves via these. Leaves produce oxygen and water vapour and these in turn diffuse out via the stomata.
What are the impact of domestication of plants to civilization and to the plant itself?
Domesticating plants marked a major turning point for humans: the beginning of an agricultural way of life and more permanent civilizations. Humans no longer had to wander to hunt animals and gather plants for their food supplies. Agriculture—the cultivating of domestic plants—allowed fewer people to provide more food.
How does diffusion happen in plants?
Plants use up carbon dioxide during photosynthesis. The concentration of carbon dioxide inside a leaf is therefore low during photosynthesis. The higher concentration of carbon dioxide in the air around the plant causes the gas to move into the leaf by diffusion. It diffuses through small pores called stomata.
How did the domestication of plants and animals change human societies?
The agricultural practices enabled people to establish permanent settlements and expand urban- based societies. Domestication of plants and animals transformed the profession of the early humans from hunting and gathering to selective hunting, herding and settled agriculture.