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The word "complex" is usually used to indicate a fish's sexual preference. Most fish are heterosexual, but if the fish has any other preferences/fetishes then it is considered complex. It is often considered a derogatory term, so be sure to not call a fish complex in the prescene of a biologist.
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How is a fish consider an animal?
In general, vertebrates possess more complex digestive and nervous systems, as well as higher levels of thinking than invertebrates. They're complex animals because they're more complex than invertebrates.
What is the organ of a fish that filters the blood?
Fish, like humans, have kidneys which regulate the water and salt content of the body. This process is often referred to as filtration, though in fact it is a combination of several complex processes.
Can fish have tourettes?
Fish do not have the ability to develop Tourette syndrome, as it is a complex neurological disorder found in humans. Tourette syndrome is characterized by involuntary movements and vocal sounds called tics, which are a result of abnormalities in the brain. Fish lack the brain structures necessary to exhibit such behaviors.
Does a fish have a brain?
Yes, fish have brains. Fish have complex nervous systems that allow them to sense their environment, make decisions, and coordinate their movements. The size and complexity of their brains vary depending on the species.
What is the difference between a rat and a fish digestive system?
Rats have a monogastric digestive system with a simple stomach, while fish have a more complex digestive system with multiple stomach chambers or compartments. Fish also have a shorter digestive tract compared to rats, as they rely more on external digestion due to their aquatic environment.
