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the bone marrow makes the blood cells. the compact bone protects our bone. the growth plate and bone cartilage will turn into bone and make you grow.

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bones work together in many ways such as when they make the blood cells and they will also provide support and protection.

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How do our bones get better from when it breaks when we wear a cast?

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what parts of the skeletal system is not all just bones?

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Why do we have all the different kinds of tissues and bone marrow such as red bone marrow and yellow bone marrow?
How are they different?

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what are the different functions of our bones?

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What happens if our bones don't connect to each other like it's supposed to?

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Why do our bones connect to each other?

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we use the mouth, stomach, and small and large intestines to break down food and absorb it.

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The nose filters air when we breath in and then the air goes through your larynx and pharynx. after that, the O2 goes thought the bronchial tubes that split into the broncholies and have many little alveoli at the end. inside the alveoli, the O2 and Co2 exchange takes place. the capillaries then transport the O2 to the cells that need it.

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Most good bacteria are  probiotics

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Yes, an example is when the villi transport the food molecules and the nutrients into the circulatory system to be distributed into the many systems and cells .

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example of an organelle structure

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200 different cells. Your body has many different kinds of cells. Though they might look different under a microscope, most cells have chemical and structural features in common. In humans, there are about 200 different types of cells, and within these cells there are about 20 different types of structures or organelles.

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Diffusion is when there is a high and low concentration of something and it moves to create equilibrium

osmosis is the diffusion of water

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The circulatory system is the system of how our blood moves around our body and how it helps us grow and survive

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why do some people bruise more easily that others?

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What happened when people had problems with their lungs when there weren't any medicine/hospitals?

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What happens if our lungs don't work well?

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what makes the blood in the circulatory system

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how does the skeletal system connect with the circulatory system

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how does the skeletal system connect with the circulatory system

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new cells are created by cells that where existing before and also new cells can multiply themselves

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They work together by breaking down the food and they are connected to each other

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Nutrients are used to feed our cells

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it takes between 30 and 40 hours to digest food

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how did someone find out that bacteria was good and what was bad?

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how do we know what bacteria is good and which is not good?

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how does the brain control the nervous system

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how does the brain control the nervous system

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What if you are missing one of your organs in the digestive system?

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How long does it take to the digestive system to work?

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Our stomach uses enzymes to break down food.

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how long does it take the human body to produce food to the digestive system?

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when does your nervous system know what to do?

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how does our body use nutrients and what are they used for?

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what are all the different cell types in the digestive system

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how many different cells are in the human body

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approximately 37.2 trillion cells are in the human body

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how do the organs work together to make up the digestive system

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How are cells created?

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Do cells interact with other parts of the system

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the stomach and the chemicals in the stomach

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the stomach and the chemicals in the stomach

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There are multi-cellular cells and single-cellular cells

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chemicals break down the food in our body

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chemicals break down the food in our body

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What organs do we use to help the food in our body to break down?

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How many cells are in one human body?

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how do bone tissues form?

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The Skin cells and the Cheek cells look alike in some ways including, they both have a nucleus and hey both look egg-like.

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how does food break down inside the body

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how does muscles weight more then body fat

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how does our brain receive these messages from the nerves

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how does our brain receive these messages from the nerves