In an organism, it is the genetic information located in the nucleus that determines everything about the organism. However, the organelles in each cell have basic functions that are important in the survival of just about any organism. Of course, plants and animals vary slightly in cell organelles due to different functions (plants have cell walls, chloroplasts, etc.).
Different cells have different appearences because they have different functions. A good rule of thumb is the "form follows function" rule.
pro
Embryos of different animals may look similar due to shared evolutionary history. This concept is known as embryonic homology and suggests that animals with a common ancestor will display similarities during early development. Shared genetic and developmental pathways contribute to these similarities, even if the adult forms of the animals look very different.
Scientists look at various characteristics of organisms such as their physical appearance, genetic makeup, behavior, and evolutionary history to classify them into different taxa. These characteristics help scientists group similar organisms and understand their relationships and differences. The classification system used by scientists is called taxonomy.
No, different cells in the body have unique structures and functions based on their specific roles. For example, skin cells are different from nerve cells in both appearance and function. Each cell type is specialized to perform specific tasks within the body.
Not necessarily. Organisms that look different can belong to the same species if they can interbreed and produce fertile offspring. Organisms that look similar can also belong to different species if they are reproductively isolated and cannot interbreed successfully.
yes
no
Microscopes have 2 convex lens and telescopes too while microscopes are used to look at cells and microscopic organisms.
they are different because they are
When a body is made out (eg an amoeba) of one or just a few cells (eg a sponge) then these cells tend to look the same and do similar things. However as a body becomes made out of millions of cells (eg a dog), then the cells, although they are come from the one original egg cell, differentiate. Some become bone cells, others skin cells, others nerve cells - the cells specialize in multi-cellular organisms to make the organism more efficient.
Many-celled organisms do not look a like. Their appearance will vary based on what cells they are made up of. They also often have a different structure than each other.
The structures should have similar anatomy in the two organisms.
To a trained eye they look different.
Different cells have different appearences because they have different functions. A good rule of thumb is the "form follows function" rule.
similar to look the same but have a different size or measurement.
No, they are not. They have similar features, but some have different jobs which they have features unlike other cells to fulfil their different job