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Is the oldest known fossils prokaryotic or eukaryotic?
The oldest known fossils are prokaryotic. These fossils, dating back over 3.5 billion years, are believed to be ancient bacteria and archaea. Eukaryotic cells are thought to have evolved later.
Which organelles most likely appeared last in eukaryotic cells?
The nucleus is thought to have appeared last in eukaryotic cells. This is supported by the endosymbiotic theory, which suggests that eukaryotic cells evolved from prokaryotic cells through a series of symbiotic relationships.
Why are prokaryotes older then eukaryotes?
Prokaryotes are considered older because they appeared in the fossil record earlier than eukaryotes. It is believed that the simpler structure of prokaryotic cells made them better suited for survival in the early Earth conditions. Eukaryotic cells with their complex internal structures evolved later.
How do eukaryotic compare in size to prokaryotes?
Prokarotes are single-celledbacterium and eukaryotes are plants, animals, and fungi. So eukaryotes are a whole lot larger than prokaryotes.
What is the best evidence that all life evolved from prokaryotic rather than eukaryotic ancestors?
One strong piece of evidence is that prokaryotic organisms are simpler and have fewer complexities compared to eukaryotes. Additionally, fossil evidence indicates that prokaryotic organisms appeared much earlier in the Earth's history than eukaryotic organisms. Genetic analyses also suggest a closer relationship between prokaryotes and the common ancestor of all life.
What is the difference between something eukaryotic and something prokaryotic?
There are quite a few differences between eukaryotic and prokaryotic cells. Prokaryotic cells do not have a nucleus, while eukaryotic cells do. Prokaryotic cells are not found in humans while eukaryotic cells are. Prokaryotic cells are primitive while eukaryotic cells are much more evolved.
What are the evolutionary relationships between prokaryotic and eukaryotic cells?
Mitochondria and chloroplasts have prokaryote-like features. For example, although most of the DNA in eukaryotic cells resides in the nucleus, both mitochondria and chloroplasts have DNA molecules in their inner compartments. Mitochondrial and chloroplastic ribosomes are similar to the ribosomes of prokaryotes. The endosymbiont theory proposes that eukaryotic organisms evolved from prokaryotic ancestors; this idea supports the notion that organelles evolved from prokaryotic organisms that originally lived inside larger cells, eventually losing the ability to function as autonomous organisms
The presence of which organelle indicates that eukaryotic cells have evolved from prokaryotic cells?
The presence of mitochondria in eukaryotic cells indicates that they have evolved from prokaryotic cells. Mitochondria have their own DNA and ribosomes, similar to prokaryotic cells, and are believed to have originated from a symbiotic relationship between an ancestral prokaryotic cell and an archaeon.
Which organelle indicates that eukaryotic cells have evolved from prokaryotic cells?
Mitochondria, which are thought to have originated from a symbiotic relationship between early eukaryotic cells and aerobic bacteria, provide evidence that eukaryotic cells have evolved from prokaryotic cells. Mitochondria have their own DNA and ribosomes, similar to prokaryotic cells, and carry out cellular respiration, a process that is also similar to bacterial metabolism.
What is cellular organization?
It basically means all cells are divided into two types: prokaryotic cells and eukaryotic cells. Prokaryotic cells evolved 3.5 billion years ago and have a nucleus. Examples of a Prokaryotic cell include protista, fungi, plants and animals. Eukaryotic cells evolved 1.5 billion years ago and do not have a nucleus. An example of a Eukaryotic cell is bacteria.
What was the theory developed around the idea some eukaryotic organelles evolved from prokaryotic organisms?
endosymbiont
Mitochondria prokaryotic or eukaryotic?
Mitochondria are considered to be eukaryotic organelles. They have their own DNA and ribosomes, and are thought to have evolved from engulfed prokaryotic cells in a symbiotic relationship with eukaryotic cells.
Is the evolution of the prokaryote before a eukaryote cell?
Yes, prokaryotic cells evolved before eukaryotic cells. Prokaryotic cells lack a nucleus and membrane-bound organelles, while eukaryotic cells have both. It is believed that eukaryotic cells evolved from prokaryotic cells through a process called endosymbiosis.
Is the oldest known fossils prokaryotic or eukaryotic?
The oldest known fossils are prokaryotic. These fossils, dating back over 3.5 billion years, are believed to be ancient bacteria and archaea. Eukaryotic cells are thought to have evolved later.
Is the following true or false The ancestor of all eukaryotic cells evolved about 2 billion years ago?
True. The ancestor of all eukaryotic cells is thought to have evolved approximately 2 billion years ago through a process of endosymbiosis, where prokaryotic cells engulfed other prokaryotic cells, leading to the formation of more complex eukaryotic cells.
What role does the endosymbiont theory play in explaining the origin of eukaryotic cells?
The endosymbiont theory explains that eukaryotic cells evolved from a symbiotic relationship between different types of prokaryotic cells. This theory suggests that mitochondria and chloroplasts, which are organelles in eukaryotic cells, were once independent prokaryotic cells that were engulfed by a larger host cell. Over time, these prokaryotic cells became integrated into the host cell and eventually evolved into the organelles we see in eukaryotic cells today. This theory helps to explain the presence of these organelles in eukaryotic cells and provides insight into the evolutionary history of these complex cells.
Which organelles most likely appeared last in eukaryotic cells?
The nucleus is thought to have appeared last in eukaryotic cells. This is supported by the endosymbiotic theory, which suggests that eukaryotic cells evolved from prokaryotic cells through a series of symbiotic relationships.
