How many systems do humans have?

Humans do not get headaches from high and low pressure systems.

Both systems can be made by humans and can be naural.

The digestive, respiratory and circulatory are three examples of organ systems that insects and humans have in common. Like humans, insects also have nervous, endocrine, muscular and reproductive systems.

Dogs have the same organ systems as humans.

The difference between fetal pigs and humans systems is actually not that big. The humans are bigger than fetal pigs.

I believe that mice do have stronger immune systems than humans because of the environment they dwell in.

Humans, i believe, have closed circulatory systems.

Yes, humans and bacteria share a common genetic code. The genetic code, genetic language, allows bacteria to affect many internal systems found in humans.

humans often cause change to systems in nature.

Eight or Nine main organs, but I'm not sure which one... I hope this helped you.

Yes Yes, we are.

the humans of Himalaya built them

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.

a circulatory system and a reproductive system

Humans have closed circulatory systems.

i think it is the musels

It makes it harder for humans to travel.

The two coordination systems of the body are the nervous systems and the endocrine sytems, which enable all parts of the body to work together as one.

Excretory systems are made up of many cells acting together to form an organ. In humans this organ is the kidney.

Yes, since dolphins and humans are both types of mammals, the digestive systems are similar.

Probably not humans, for what we know. Maybe there's another planet with humans, though, that we don't yet know of. With the many thousands of planets and solar systems in space, chances are great that some are inhabited by intelligent life, similar to humans.

We have hearts, lungs, digestive systems, and brains.

How does inteconnect organ sytems

They both can be made by humans and they both can be natural.

cells-organs-tissue-systems-organism Cells-->Tissue-->Organ-->Systems-->Organism-->Potato-->Ice cream