matthyaouw said:Thanks peoples. I'll go do some researching.
Not been taught a thing about these in college. Its typical curriculum isn't it- they'll teach me all about my nervous system, but nothing about why I have enough cells to need one.
matthyaouw said:I'm from England actually, so I'll bet our curriculums are somewhat different. College is somewhat different, and way less specialised than in the U.S.A. (I assume that's where you're from). It's like an intermediate stage between high school & university in which you can do up to 5 "A level" courses on more or less whatever you like, so there is no where near the amount of detail in each course that you would find in the U.S.
The real tricky stuff begins in university, but sadly, i chose physical geography rather than biology, so I guess I'll never know a huge amount about it.
The main difference between single-celled and multi-celled organisms is the number of cells that make up their body. Single-celled organisms, also known as unicellular organisms, consist of only one cell, while multi-celled organisms, also known as multicellular organisms, are made up of multiple cells that work together to form tissues and organs.
Single-celled organisms reproduce through a process called cell division, where one cell divides into two identical daughter cells. This can happen through either binary fission, where the cell splits into two, or budding, where a smaller cell grows off of the parent cell.
Yes, it is possible for single-celled organisms to evolve into multi-celled organisms. This process is known as multicellularity and has occurred multiple times in the history of life on Earth. It involves genetic mutations and natural selection leading to the development of specialized cells and tissues that work together for the survival of the organism.
Multi-celled organisms have several advantages over single-celled organisms. They are able to grow larger in size, have more complex and specialized body structures, and can perform more complex functions. They also have a higher level of organization and can have a division of labor among different cells, making them more efficient.
Scientists study the transition from single-celled to multi-celled organisms through a combination of fossil evidence, genetic analysis, and laboratory experiments. By comparing the characteristics and genetic makeup of different organisms, we can gain insights into the evolutionary processes that led to the development of multicellularity.