The answer you're looking for would be enzymes
Answer:
A. Equal to cardiac output
Explanation:
Venous return refers to the rate at which blood flows back to the heart.
Averaged over a few heartbeats and over steady state conditions, venous return is equal to cardiac output. This is because the cardiovascular system is a closed loop made up of the pulmonary and systemic circulations.
The reason why the venous return must equal cardiac output is to avoid the accumulation of blood in one of the two circulations in the cardiovascular system.
Some of the mechanisms for venous return include;
1.) Exercise
2.) Gravity
3.) Thoracic pump and
4.) Pressure Gradient
5.) Skeletal muscle pump
Conduction and convection are means of transferring heat, the important difference is the medium through which the heat travels. Conduction occurs when heat is transferred through solid objects, like a bar.
Answer:
when heated, the molecules of the liquid in the thermometer move faster, causing them to get a little further apart. this results in movement up the thermometer. when cooled, the molecules of the liquid in the thermometer move slower, causing them to get a little closer together.
Explanation:
hope this helps!!!!
If you mean flame cells then it's because they have a cluster of cilia which looks like a flickering flame when under a microscope