The three domain system is wrong and will be corrected.
<u>Explanation:</u>
Carl Woes in 1977 classified the living beings into three domains: Archaea, Bacteria and Eukaryotas based on the 16s rRNA. But now with the advancement of technologies this classification has become a topic of debate and may need revision.
As Meta-genomics was introduced sequencing of DNA has become easy and it's easier now to analyze the chromosomes of an organism. Various new viruses and bacteria have been discovered (such as mimivirus) which do not fit into the classification system (requires the addition of new domains)..
Also, three domains of life is controversial as some scientists believe that Eukaryota evolved from the merge of prokaryotes and archaea (endosymbiosis). So, metagenomics and phylogenomics are revealing the diversity of organisms which are required to be placed in a true domain.
<u>For more information you can read these papers:</u>
- https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4008548/
- https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5604501/
Answer: A (Tissue)
Explanation:
Cells are the simplest level of organization. Many cells working together form tissue. The cells involved are specialized to cooperate with each other to accomplish one common goal. There are many different types of tissue in both plants and animals. When there are layers of tissue working together, they form an organ.
Hope This Helps!
<span>All things that are found within the Earth are one way or another, composed of carbon. Carbon is very abundant within metals that are dug from the Earth and they can also be seen making up parts of the human body’s bones to make it light weight. Most scientists believe that throughout the evolution of Earth, carbon has always been present and makes up most of the materials that have existed before. </span>
I think it is called a Case study.
Hopefully it is correct! :)
