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The number of chromosomes. For example, humans have 46.

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Q: What characteristic determines whether organisms belong to the same species?
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Related questions

What determines whether or not a substance will dissolve?

The most important characteristic is the polarity of the solvent and solute.


What determines whether a species is known or unknown?

A species is a group of closely related organisms. Organisms belong to the same species if they can mate and produce fertile offspring. A lion and tiger are not the same species because they can make a liger, but it will not be fertile.


Which characteristic determines whether a rock is classified as a shale a siltstone a sandstone or a conglomerate?

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What are principal characteristic that determines whether an aquatic ecosystem is classified as marine or freshwater?

This is cheating. *AP Enviromental Science


How is co-evolution significant in community ecology?

because it determines whether a species will evolve to keep up with its predator or prey


What determines whether two species are in the same genus?

Two species are typically placed in the same genus based on shared physical characteristics, genetic similarities, and common evolutionary ancestry. Taxonomists consider a combination of these factors when determining the classification of species into different genera.


What determines whether it will float in water?

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What determines whether there will be a high or low tide?

The moon determines if there will be high or low tides.


What is cladistics?

A system that groups organisms by ancestry


What determines whether two organisms can reproduce?

These two organisms cannot be asexual, if so then they need no mate. In order to reproduce they would need one organism to have male reproductive organs and the other organism to have female reproductive organs. This way they can reproduce sexually. The two organisms must also be of the same species. For example, a male dog and a female cat can't mate, but two heterosexual dogs can.


What do biologists use to establish whether or not two organisms are of the same species?

Comparisons of appearance, comparisons of structure, and comparisons of DNA and proteins.


How can you determine if 2 organisms are in the same species?

If two organisms are able to mate and produce fertile offspring, then they are of the same species.Horses and donkeys are two different species because if they mate, they produce a mule which is sterile (not fertile). This shows horses and donkeys are of different species.