Answer:
The correct answer is A. Ecological succesion
Explanation:
B. secret languages used for communication.
C. secret plans for attacking the enemy.
D. strict rules about military strategy.
Answer;
B. secret languages used for communication.
Explanation;
-Military code is a system of conventional symbols for the covert transmission of secret military information through communications equipment.
-For example; A United States military occupation code, or a military occupational specialty code (MOS code), is a nine-character code used in the United States Army and United States Marines to identify a specific job.
The order that the nucleotide are arranged in form different 'codes' to create traits.RNA in human is used for transporting,and making the amino acids proteins.
The order of amino acid proteins also changes the polypeptide formed, changes more traits and characteristics.
Pyrimidines: Cytosine and thymine each have a single six-member ring.
Purines:Guanine and adenine each have a double ring made up of a five-atom ring attached by one side to a six atom ring.
Therefore,they are different, due to nucleotide of our DNA contains four different nitrogenous bases.
To know more about the DNA and RNA nucleotide follow the link:
The Linnaean system of classification is still used because it provides an internationally recognized method for organizing and identifying species. Changes to the Linnaean system, like the addition of more kingdoms and the domain division, represent advances in scientific knowledge. Despite the modifications, the fundamental purpose of classifying biological diversity remains intact, making the system robust and adaptable.
We continue to use the Linnaean system of classification because it provides an internationally accepted method of organizing the vast diversity of life on Earth. Just like a library uses a classification system to organize books, taxonomy helps to organize and identify the millions of species on Earth. Changes to the classification system over time, such as the addition of more kingdoms and the higher division of domains, reflect advances in our scientific understanding, especially in the realm of genetics and molecular biology.
Carl Linnaeus initially categorized life into two kingdoms: the plant and animal kingdom. But with the expansion of scientific knowledge, three more kingdoms have been added to include fungi, protists, and monera (bacteria), and three domains were introduced: Bacteria, Archaea, and Eukarya.
These changes to the Linnaean system reflect the presence of more complex relationships among organisms than initially understood. The system remains robust and useful by accommodating changes based on new scientific discoveries and technological advancements. Its hierarchical nature allows it to be flexible and adaptable to incorporate new knowledge while maintaining its foundational purpose of classification. Hence, despite modifications made to this classification system since its inception, it continues to be the fundamental framework for typing biological diversity.
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tracheids
vessels
companion cell
vascular parenchyma