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What biologically important material were kingdoms in northern Africa were able to attain great wealth by controlling the trade?
Kingdoms in northern Africa, such as the Ghana, Mali, and Songhai empires, attained great wealth by controlling the trade of gold. This precious metal was highly sought after in various parts of the world, especially in Europe and the Middle East, for its use in currency and jewelry. Additionally, these kingdoms also traded in salt, which was essential for preserving food and maintaining health, further enhancing their economic power and influence.
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What was the most important trading material for the early African kingdoms of Ghana and mali?
gold
What is a bioaerosol?
A bioaerosol is an aerosol containing biologically active bacteria, spores, viruses and toxins, and other similar material.
What does it mean to be biologically related?
Being biologically related means sharing genetic material with another individual, typically through common biological parents or ancestors. This relationship is determined by similarities in DNA sequences and inherited traits that are passed down through generations.
Do plantea kingdoms have nucleus or not?
The plantea kingdom includes all types of plants. Species in the plant kingdom have a nucleus and consist of complex cells.
What is void in amorphous material?
In amorphous materials, voids refer to spaces or gaps within the material where there is no solid substance present. These voids can affect the material's properties like strength and density, and can also impact its thermal and electrical conductivity. Understanding and controlling voids is important in the processing and performance of amorphous materials.
Which 4 kingdoms have nuclei?
The four eukaryotic kingdoms that have nuclei are Animalia, Plantae, Fungi, and Protista. Nuclei are membrane-bound organelles that house the genetic material and control the activities of the cell.
What are structural effects?
Structural effects refer to changes in properties or behaviors of a material as a result of its internal arrangement or molecular structure. These effects can impact mechanical, electrical, thermal, or other properties of a material. Understanding and controlling structural effects are important in fields like materials science, engineering, and chemistry.
What is the most important job for the nucleus?
The most important job of the nucleus is to store and protect the cell's genetic material, which includes DNA. It also regulates the expression of genes by controlling the transcription of messenger RNA (mRNA) and plays a key role in cell division.
What kingdoms have heterotrophs and autotrophs in them?
Out of the 6 kingdoms (Archaebacteria, Eubacteria, Protista, Fungi, Plantae, and Animalia), only Archaebacteria, Eubacteriam and Animalia are made up of heterotrophs
What is a property and why is it important?
what are important properties of material.
What is the central controlling body within a living cell?
The nucleus is the central controlling body within a living cell as it contains the cell's genetic material in the form of DNA. It regulates the cell's activities, including growth, metabolism, and reproduction, by controlling gene expression.
How are non-material goals important?
Non-material goals are important because different people have different goals maybe.
