Because they don't need to. The operative term here is single celled...single celled organisms cannot survive if they specialize at the same level as a cell in a multicellular organism. Now it can breathe but it can't eat
tati gooo
bcoz they do yaara
it has more cells.
yes.There are several organisms. Spirogyra ,some algae are some
No, theyre many celled. They are classified as animals.
Single celled organisms do not grow old and die, they are not made of enough parts to "wear out" like us. They simply split into two via mitosis.
Nope. Worms are multi-cellular organisms, just like you and me. They're just very simple
They are multicellular, complex organisms.
The reason single celled organisms were do dominant was because they were the least complex creatures. As single-celled organisms evolve into more complex creatures, their requirements also become more complex and it becomes harder for them to survive.
no
No, they are called "organelles" in a single celled organism. "Organs" are multi-celled structures with specific functions.
The most complex single-celled organisms are known as eukaryotic microorganisms. These organisms possess a nucleus and other membrane-bound organelles, which differentiate them from prokaryotic microorganisms like bacteria. Examples include protists like amoebas and paramecia.
Kingdom Protista contains complex single-celled organisms.
One way that single-celled organisms are different from multi-celled organisms is in their complexity. Single-celled organisms consist of just one cell, while multi-celled organisms are made up of multiple cells organized into specialized tissues, organs, and systems. This allows multi-celled organisms to perform more complex functions and have greater structural and functional diversity.
It took many years of evolution for complex, multi-celled organisms to develop. Single celled organisms were the first that were around to be fossilized.
Kingdom Protista contains complex single-celled organisms.
Plants are complex organisms and are made up of many different types of cells.
Organisms covered by tiny locomotory structures belonging to the phylum Ciliophora are known as ciliates. These structures, called cilia, are hair-like projections that allow ciliates to move and feed. Ciliates are single-celled organisms found in various aquatic environments and are known for their complex cell structure and diverse behaviors.
Simple bacteria consist of a single cell however, there are more complex organisms, known as protoctists. Unlike bacteria, they have complex internal structures, such as nuclei containing organised strands of genetic material called chromosomes. Most are single-celled, but some form colonies, with each cell usually remaining self-sufficient. There's more detailed information here http://www.infoplease.com/dk/science/encyclopedia/single-celled-organisms.html#ixzz3XLhLdpe9