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Because we are made of millions of cells while an amoeba is just one cell. Large organisms made of many cells need solid supports to stand up.

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13y ago

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Why humans need a skeletal system?

It would be inpossible to move. We would be like a large bouncy ball.


What does the skeletal system do to meet the cells need?

The skeletal system meet the cells need by .....


Why do larger organisms need a circulatory system and amoeba do not?

We are eukaryote which means are cells are more advanced than there's. And since we have more cells than a amoeba. Our cells carry oxygen to the brain and other organs in the body. A amoeba dose not have a brain. So it doesn't need a circulatory system.


Why don't amoeba's need a skeletal system?

An amoeba does not need a blood system because its body has other organelles that it uses to survive. Plus a blood system is made up of many different cells and an amoeba consists of only one cell, that is why it is called a single celled organism.


Why do you need your skeletal system?

Your skeletal system is one of the most important systems in your body. It is the foundation for your body and if you didn't have it, your body would be a pile of flesh and guts.


What organs do the skeletal system need to function properly?

heart brains lungs


How amoeba die?

Amoeba can die if they lack oxygen. They need it.


Why amoeba does not need a respiratory organ?

no they are to small to have a respiratory system or organ so they breath through there cell membrane


Why ligaments a part of the skeletal system?

If we didn't have a skeletal system we would be a blob on the ground. If we didn't have bones well basically the same thing but also we wouldn't be able to produce blood or marrow.<----- (important) We also need tendons and ligaments so our muscles stay attached to our bones (another reason why we need bones) and allow smoother movement.


Which body system is to help a person move?

All organ systems work together. First of all you need energy, digestive system does that. Then the circulatory system takes the food and takes it to the body. And for cellular respiration you need oxygen, so respiratory does that. And nervous is for telling and thinking what to do. And the main ones are skeletal and muscular systems. Muscular move bones which are from the skeletal system.


Why don't humans need a complex circulatory system while an amoeba does not?

Humans have a complex circulatory system to efficiently transport oxygen, nutrients, hormones, and waste products to and from cells throughout the body. Amoebas, being single-celled organisms, can rely on simple diffusion to exchange gases and nutrients with their environment due to their small size and surface area.


Why do animals including humans need to mate. Why can't they just give birth on their own?

It's because humans have sexually reproduction that why they can't reproduce by asexually means (like amoeba which fusses itself) I think that is the answer.