nervous system, endocrine system, limbic system, digestive system, etc.
They both can be made by humans and they both can be natural.
In some belief systems and philosophies, humans are considered to have divine qualities or the potential to attain god-like status, but they are not typically viewed as gods themselves.
No, humans do not have 7 lives like the concept of reincarnation in some belief systems. In most belief systems, reincarnation is the belief that a soul is reborn into a new body after death, but the number of lives a soul may have varies and is not limited to 7.
Sharks, unlike humans have only 5 systems. They have hearing, smell, taste and touch. In addition they can detect weak electric fields in the water. Some of these sense are more accurate in sharks than in humans. their smell organ is more developed than humans.
No, humans do not have a cloaca. A cloaca is a single multipurpose opening for the urinary, reproductive, and digestive systems found in some animals like birds and reptiles. Humans have separate openings for these systems.
Systems that run by themselves and don't need humans to control them.
Evolution.
digestive system
i think they do
Animals were sent into space before humans to test the life support systems and to generate some data regarding the hazards and potential medical concerns for humans.
Same as humans
Yes, changes in barometric pressure can trigger headaches in some individuals. High pressure systems can cause an increase in pressure within the head, leading to headaches or migraines, while low pressure systems can result in a decrease in oxygen levels, potentially causing headaches in sensitive individuals.