Many farmers in less densely populated area, such as Amazonia, practice slash and burn agriculture, also known as shifting cultivation or swidden agriculture where an area is cleared and then burned for the vegetative remains to release nutrients back into the soil. Shifting cultivation is a system where a farmer uses a piece of land, only to abandon or alter the initial use a short time later. Advantages of shifting cultivation includes; enhance control of pest and disease, inorganic matter addition which provide nutrient to crop, an effective way of weed control
Answer;
a segment of chromosomal DNA
Explanation;
A gene is a hereditary unit consisting of a sequence of DNA that occupies a specific location on a chromosome and determines a particular characteristic in an organism. Genes undergo mutation when their DNA sequence changes.
It is the basic physical and functional unit of heredity. Genes are made up of DNA. Some genes act as instructions to make molecules called proteins. However, many genes do not code for proteins.
Alleles are forms of the same gene with small differences in their sequence of DNA bases. These small differences contribute to each person’s unique physical features.
The correct answer is Oral region.
Submental region is the head region located on the area under the chin. This means that laceration of this region will most likely affect the oral region that is beneath submental region. Oral region includes facial area comprising lips and mouth.
Grounds are located where warm and
cold currents converge, where warm and cold currents meet happens to have
regular foggy conditions, as the overlying warm and cold air come in contact
with each other. They also tend to have high biological productivity, because
plankton growth is encourage by the mixing of warm and cold currents. Some of
the world's most productive fishing.
Answer:varied in size
Explanation:Galaxies vary in appearance. Galaxies differ greatly in size. Some contain as few as a hundred million stars, but the biggest have more than a trillion stars. Galaxies also vary in shape.
