Answer:
4
Explanation:
The circulatory system includes the blood that has picked up the carbon dioxide from all of the respiring tissues and who also delivered oxygen to them to continue respiring.
The blood will then reach the lung where the carbon dioxide that the tissues released is exchanged for oxygen in the alveoli.
* Blood cells isn't an organ system which makes 1 incorrect.
* Digestive system will in no way bring the blood to the lungs or away from it. This is the circulatory system's job. So 2 is incorrect.
*Lastly, lungs are organs and the question asks for organ systems. So 3 is incorrect.
Plates move away from one another at divergent boundaries. This happens at mid-ocean ridges. Plates move towards one another at convergent boundaries; one plate is forced below another in a process called subduction. Earthquakes and composite volcanoes are common at this type of boundary. hope this helps
The answer is a water molecule
Answer:
A. carbon dioxide molecules C. glucose molecules
Explanation:
Answer:
Myofibrils.
Explanation:
Myofibrils may be defined as the basic unit of muscle cell that are rod like in appearances. The tubular like myocetes or muscle cells are present in the myofibrils.
Myofibrils consists of dark and light bands. The myofibril is the skeletal muscle organelle that actually contracts during the muscle contraction. The myofibril unit is formed during the embryonic development by the myogenesis process.
Thus, the correct answer is option (E).
