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When do the first eukaryotic cells show up in the fossil record?
The first eukaryotic cells appear in the fossil record around 2 billion years ago during the Proterozoic eon. The oldest known eukaryotic fossils are single-celled organisms called acritarchs. These early eukaryotes eventually gave rise to more complex multicellular life forms.
Is it true that the presence of pus and white cells in the urine often indicates infection cells in the urine?
Yes, the presence of pus cells/white blood cells in the urine often indicates an infection in the urinary tract. Bladder infections, STDs, and other types of infections may be the cause.
What did early scientist use to see cells?
The only way to see cells is with a microscope. The earliest scientist had to use a rather primitive one.
Did Robert hooke see dead cells true or false?
Hooke looked at dead cells. The ones he saw were from fossil rocks. He called them cells because they looked the the small rooms of monks called cells.
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.
Fossil evidence suggests that the earliest cells on Earth were?
simple prokaryotes
According to the fossil record when did the first prokaryotic cells appear on your planet?
2.5 billion years ago
When do the first eukaryotic cells show up in the fossil record?
The first eukaryotic cells appear in the fossil record around 2 billion years ago during the Proterozoic eon. The oldest known eukaryotic fossils are single-celled organisms called acritarchs. These early eukaryotes eventually gave rise to more complex multicellular life forms.
Is hydrogen fuel cells fossil fuels?
no because hydrogen fuel cells are renewable
What does a colon between two cells references indicates a range of cells including?
all cells between the two cells
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.
What is it hypothesized that the earliest known cells used for producing energy?
carbon dioxide
Which suffix indicates cells that produce the matrix of connective tissue?
The suffix "-blast" indicates cells that produce the matrix of connective tissue. These cells are responsible for synthesizing and secreting the components that make up the extracellular matrix in connective tissues.
Is it true that the presence of pus and white cells in the urine often indicates infection cells in the urine?
Yes, the presence of pus cells/white blood cells in the urine often indicates an infection in the urinary tract. Bladder infections, STDs, and other types of infections may be the cause.
What did early scientist use to see cells?
The only way to see cells is with a microscope. The earliest scientist had to use a rather primitive one.
What is the earliest form of life?
Bacteria and Cells with fomed from the big bang, but if you are a creationist then, Adam and eve
What is a cell highlighted with a dark border?
Usually that indicates the active cell, but you can also have a selection of cells or have cells that have had borders applied to them.
