Why is it hard to classify organisms?

Answer 1

Many organisms are very similar, especially at the species level when dealing with same family and genus. Because of this, and because of the sometimes unclear relationships and development periods of each, some organisms might be difficult to classify, e.g. whether they are merely subspecies, or are different species, or are actually from a different genus but same family.

Answer 2

A consumer may have more than one source of food so classifying it into tropic levels can be difficult. An organism which is being eaten may also be at various tropic levels. Some organisms may even change their tropic level over time. Other organisms exist at different tropic levels throughout various stages in their life cycles.

Answer 3

Because new information comes to light all of the time. For instance, giraffes have been found to be four different species this year. Previously, they were thought to just be variations of the same one.

Answer 4

Classifying organisms can be difficult because of factors such as variations within species, convergent evolution, and the existence of transitional forms. Additionally, the advent of genetic studies has revealed unexpected relationships and led to reevaluations of traditional classifications.

Answer 5

they are all differen... animal-like, plant-like, and fungus-like.... the animal-like are simila to animals except they have only one cell and they have no organ systems =p

Answer 6

Classification of organisms is often difficult because of variation, hybrids and ring species

Answer 7

they are not made up of cells