Pathogenic bacteeria have evolved many toxins to attack eukaryotic cells and many of these have had valuable practical etc
all cells that have a nucleus are eukaryotic.
Earth is estimated to be around 4.6 billion years old, and evidence of the first life forms dates back to about 3.5 billion years ago, in the form of fossilized microorganisms. This means there were around 1.1 billion years of Earth's existence before evidence of life appeared.
Eukaryotic organisms typically have one type of nucleus in their cells, which contains the genetic material in the form of chromatin. The nucleus is enclosed by a double membrane called the nuclear envelope and plays a central role in controlling cellular activities.
The eukaryotic cell cycle consists of four main stages: G1 (Gap 1), S (Synthesis), G2 (Gap 2), and M (Mitosis). During these stages, the cell grows, copies its DNA, prepares for division, and divides to form two daughter cells.
* 3.5 billion years ago the first life arose: prokaryotic bacteria * 1.5 billion years ago eukaryotic cells arose Therefore, prokaryotes were present on earth for 2 billion years prior to the emergence of eukaryotic life.
* 3.5 billion years ago the first life arose: prokaryotic bacteria * 1.5 billion years ago eukaryotic cells arose Therefore, prokaryotes were present on earth for 2 billion years prior to the emergence of eukaryotic life.
No, cells in a eukaryotic multicellular organism are specialized for a specific function. Many of these specialized cells come together to form tissues, which forms organs. Each organ is specific to one job needed for life.
Pathogenic bacteeria have evolved many toxins to attack eukaryotic cells and many of these have had valuable practical etc
The eukaryotic cell has 3 stages.
all cells that have a nucleus are eukaryotic.
Life is estimated to have first begun on Earth around 3.5 to 4 billion years ago. This early life was likely in the form of single-celled organisms in the Earth's oceans.
Many Years. Many Years.
"ultimate" means best in the sense of last or final. Shadow is not a life form at all. Are you asking if life will end up in darkness? I suppose so in the sense the universe is likely to suffer heat death in many billions of years.
Earth is estimated to be around 4.6 billion years old, and evidence of the first life forms dates back to about 3.5 billion years ago, in the form of fossilized microorganisms. This means there were around 1.1 billion years of Earth's existence before evidence of life appeared.
My Life in Dog Years has 144 pages.
about 1,000 years