It is when there is no distinction between blood and interstitial fluid.
It is when there is only one type of vessel through out the whole body.
It is when your heart only has a single circuit two-chambers heart, and therefore doesn't separate the low oxygen blood from the high oxygen blood.
It occurs when animals don't have hearts, and it flow around the system naturally. (Particularly common in aquatic organisms.)
Both A and E.
Systole is the relaxation phase of the heart, and Diastole is the contraction phase of the heart.
Systole is pumps the blood, Diastole fills the chambers with blood.
Systole is the contraction phase of the heart, and Diastole is the relaxation phase of the heart.
B and C
None of the above
A and B
All of the above
Allows more 02 for to be used for cellular respiration.
A and C
B and C
Blood flows in the opposite direction of the water coming in. This way the blood at the end of the blood stream is constantly getting more 02.
They have two separate vessel systems each going in different directions, this doubles the amount of blood and oxygen, because it is has a greater amount it can absorb.
The neurogenic heart doesn't separate the the oxygenated blood from non-oxygenated blood.
The neurogenic hearts is controlled by stress factors and subconsciously by the body. Myogenic is controlled purely by the subconscious.
Myogenic heart is found in most arthropods. Neurogenic is found in all vertebrates.
Myogenic hearts are controlled from the inside muscle tissues. Neurogenic is controlled by the muscle tissues on the outside.
Neurogenic hearts are more complex.