Answer:
Durante el estado filotípico de los embriones (en el cual todos los vertebrados son similares), es difícil reconocer la especie a la cual pertenecen (). A medida que avanzan en el desarrollo, estos ...
Explanation:
El desarrollo embrionario es un proceso complejo por el cual una célula huevo se transforma, tras la fecundación, en un organismo adulto. Estas...
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.
They allow for many variations to exist in species. That's the answer
Answer : Because producers They make food for other organisms
Explanation