The circulatory system is mainly made up of the heart and the blood vessels. It is closely related to the respiratory system which is primarily made up of the lungs. The digestive system is primarily made up of the gastrointestinal tract. This simply means your mouth, esophagus, stomach, small and large intestines, and rectum up until your anus. All the cells in the human body are kept alive by these systems working together in harmony.
The heart pumps blood throughout the whole body via the blood vessels. Blood, particularly red blood cells (RBC), carry oxygen and nutrients inside of them and release them to the other cells in the body. Oxygen comes from the lungs in the respiratory system every time we breathe in air. Nutrients come from the digestive system after food has been broken down to small components that can be utilized by the cells in the body.
Above the ground is runners below the ground is roots
Answer:
I don't know if this is correct. Carbs, lipids, nucleic acids, proteins.
Carbohydrates
Carbohydrates
Explanation:
I got 15 and 16 from google, but it's also what my teacher said.
Answer:
c
Explanation:
it is a known fact because if you look at the position of the earth from space you would see that the equator is almost constantly exposed to the warmth and light of the sun however the farther away from the equatorial line the overall temperature changes it might be colder or it might be hotter depending on the position of the earth and how close you are to the poles
hope this helps plz mark brainliest
