<span>A virus is made up of a core of genetic material, either DNA or RNA, surrounded by a protective coat called a capsid which is made up of protein. Sometimes the capsid is surrounded by an additional spikey coat called the envelope. Viruses are capable of latching onto host cells and getting inside them.</span>
All living things are made of cells. Within cells, there are tiny working parts called organelles. They each have a different job in the cell. A centriole is an organelle that helps cells divide, or make copies of themselves......
Centrioles are made of nine triplets of microtubules arranged in a cylinder.
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study.com/academy/lesson/centriole-definition-structure-function.html
Answer:
Scientists observe the thickness of a tree’s ring's to learn about past climate conditions
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5INGH
Explanation:
This can be concluded of the swirling around the whole.
1 Weathering
2 Fertilizer
Soil
Direct Runoff
3 Excretion and Decomposition
4 Dissolved Phosphates
5 Geologic uplift