You were the top student in your physiology class last semester. For this reason, your professor has asked that you prepare some lectures for her physiology class this semester. Specifically, she would like you to discuss the similarities and differences between the cardiovascular and respiratory systems, in terms of pressure gradients and fluid flow. A. Explain how you will describe the role of the following structures: the pump and the tubes. B. Explain how you will describe the importance of an open vs. closed system and the relevant differences between liquids and gases. C. What is fundamentally different about the respiratory pump compared to the cardiac pump, and why does this difference exist?

A. The pump refers to the heart, which with each pulse beat, a certain amount of blood volume, with a certain frequency of time, this impulse through the arterial vessels and receiving flow through the venous vessels, the tubes in the respiratory system enter air from the outside to absorb oxygen in its most proximal part and then extract the gas residues in the same way to the outside.

B. The open system in the respiratory system is necessary to maintain a balance between the necessary gas flow and waste, in the circulatory system it is necessary in a closed system to allow the pressures to be kept constant by regulating the volumes to different parts of the organism.

The differences between liquids and gases are that they are different states of aggregation, liquids have a defined volume, gases do not, have different boiling points, kinetic energy is less in liquids than in gases, the liquid exerts less pressure than that of gases.

C. The respiratory pump is in charge of the movement of gases in the body and the heart pump is in charge of the movement of liquids, the difference is necessary to maintain two systems necessary for the vital functioning of the body, which requires the entry of oxygen and the carbon dioxide gas outlet as well as maintaining circulation so that the blood in contact with the tissues can carry nutrients and extract waste, thus keeping the body alive.

sex cells are usually half's then they find another half and make a fertilize egg

answer and explanation;

volcanic rocks are igneous rocks which form from lava, molten rock which has been thrust out of a volcano onto the surface of a rocky body such as an asteroid, planet, or dwarf planet.  

plutonic rocks are igneous rocks which form from subterranean chambers of molten rock or magma. plutonic rocks make up the base of continental crust as well as oceanic crust. their slow rate of formation causes them to be coarse grained since there is plenty of time for large crystals to form before the magma solidifies into rock.

the textural difference is that plutonic rocks are more coarse grained than volcanic rocks. plutonic rocks are coarse grained while volcanic are fine grained ; glassey or fragmental. since fine and coarse are adjectives the decision as to whether a rock is fine or coarse grained is generally made on the bases of whether or not the individual crystals can be seen in most if the rock.