1.) The alveoli is the minute air cells within the lungs where gas exchange occurs. They have small or tiny hollow, sacs, socket, follicle, or depression.
2.) Blood is called the river of life because the blood is clean , blood transport everything that must be carried from one place to another and blood brings oxygen like river.
3.) Arteries/Artery are thick-walled and elastic blood vessels. They carry blood away from the heart.
4.) The spinal cord is a cord like material in the backbone. It extends downward from the medulla oblongata thought four-fifths of the spinal column. It is protected by the backbone. It is encased in a tube filled with spinal fluid.
5.) The major organ of the respiratory system is lungs.
6.) The heart is the "central pumping station" of the body. It pumps blood throughout the body.
7.) The basic unit of the nervous system is the nerve cell or the neuron.
8.) The vein are blood vessels which have thinner walls compared to arteries. They are elastic and have bigger diameters. They carry bright red blood with oxygen from the lungs into the heart. Vein also carry materials from the cells.
9.) The brain is the master control of the nervous system that sends message to the organisms so it can respond properly to different stimuli in the environment.
Answers & Comments
1.) ALVEOLI
2.) BLOOD
3.) ARTERY
4.) SPINAL CORD
5.) LUNGS
6.) HEART
7.) NERVES
8.) VEIN
9.) BRAIN
1.) The alveoli is the minute air cells within the lungs where gas exchange occurs. They have small or tiny hollow, sacs, socket, follicle, or depression.
2.) Blood is called the river of life because the blood is clean , blood transport everything that must be carried from one place to another and blood brings oxygen like river.
3.) Arteries/Artery are thick-walled and elastic blood vessels. They carry blood away from the heart.
4.) The spinal cord is a cord like material in the backbone. It extends downward from the medulla oblongata thought four-fifths of the spinal column. It is protected by the backbone. It is encased in a tube filled with spinal fluid.
5.) The major organ of the respiratory system is lungs.
6.) The heart is the "central pumping station" of the body. It pumps blood throughout the body.
7.) The basic unit of the nervous system is the nerve cell or the neuron.
8.) The vein are blood vessels which have thinner walls compared to arteries. They are elastic and have bigger diameters. They carry bright red blood with oxygen from the lungs into the heart. Vein also carry materials from the cells.
9.) The brain is the master control of the nervous system that sends message to the organisms so it can respond properly to different stimuli in the environment.
#CarryOnLearning
Verified answer
Answer:
across
2.blood
4. spinal cord
7. nerves
9. brain
down
1.
3.
5. lungs
6. heart
8. vein