Explanation:
THIS IS MY 100% THOUGHT
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Answer:
The correct answer is - (3) natural communities replacing each other in an orderly sequence
Explanation:
In this diagram, there is ecological succession occurred, the process of the new natural community over the older natural community in an orderly sequences.
In this case, there are change from an aquatic ecosystem to new land ecosystem by changing various biotc and abiotic factors. The ecosystem go through various changes and physical changes.
Answer:
lungs
left side of the heart (LA and LV)
to the rest of the body supplying the fuel that the body cells need to function
The body cells remove oxygen from the blood, and the oxygen-poor blood is returned to the right side of the heart (RA)which was the beginning of the blood circulation This circle trip is known as the circulation of blood.
Explanation:
The blood circulatory system is also known as the cardiovascular system. its is responsible for the delivery nutrients and oxygen to all body cells. It is made up of the heart and the blood vessels running through the entire body. the circulatory system is made up of the arteries and the veins which helps in the movement of blood from the heart and to the heart.
Answer:
1. Integumentary System
2. Digestive System and Endocrine System
Explanation:
An organ system combines multiple organs to perform one or more biological functions.
The integumentary system which human skin, is an organ system that protects the outer body. So the stretch marks women experience during pregnancy are evident on the skin, and since it was mentioned in the question that "A mother's body undergoes many changes to accommodate the developing fetus during pregnancy" it can be concluded that the skin stretched due to fetus development.
The digestive system here, the liver, can get disordered by a liver disease known as Cholestasis, which alters the flow of bile produced by the liver for digestion and can lead to bilirubin buildup poisoning blood and causing itchiness that can be experienced during pregnancy.
The Endocrine system is the Hormone center of the body, it affects the mood, and can cause itchiness too.