Blood first enters the heart's right atrium. A muscle contraction forces the blood through the tricuspid valve into the right ventricle. When the right ventricle contracts, blood is forced through the pulmonary semilunar valve into the pulmonary artery. Then it travels to the lungs
Answer:
A
Explanation:
definitely A, let me know if you need more explanation
"Substitution" is the type of mutation among the choices that are given in the question that the plant undergo. The correct option among all the options that are given in the question is the second option or the penultimate option. I hope that this is the answer that has actually come to your help.
Human body is made of ten different systems. All the systems require support and coordination of other systems to form a living and healthy human body. If any one of these systems is damaged, human body will become unstable and this lack of stability will ultimately lead to death. The instability caused by damage of one system cannot be stabilized by other systems because functions of one system cannot be performed by other systems. Knowledge of human body systems is very important for a medical professional because it is the base of all medical sciences and clinical practices. Although, generally, the structural aspects of human body systems are studied in anatomy and the functional aspects are studied in physiology but it is very important to have a coordination between the two subjects because knowledge of structure is incomplete without the knowledge of function and the knowledge of function is incomplete without the knowledge of structure.
Answer:
the oxygen from the environment will flow into the cell
Explanation:
because by diffusion, areas of high concentration flow to low concentration :)
