Answer:
water-vascular system
Explanation:
Echinoderms exhibit several unique features and the presence of a water vascular system is one of them. The water vascular system of these organisms consists of a network of fluid-filled canals and chambers. The marine water enters and exits the system through an opening. This system functions as a hydrostatic skeleton during locomotion.
Tube feet of these organisms are filled with fluid as water enters into them via the canals of the water vascular system lead to them. This inflates the tube feet and serve in locomotion. The water entering through the water vascular system also brings in dissolved oxygen and food particles into the body.
-4x - 10 = 12
-4x - 10 (+10) = 12 (+10)
-4x = 22
-4x/-4 = 22/-4
x = 5.5
hope this helps
I'm not sure what u are looking for but we are both Primates.
E.coli because e coli is a bacteria.
Answer:
1.543
Explanation:
According to Poiseuille's law, blood flow (Q) is given by:
Where ΔP is the blood pressure difference, μ is the blood viscosity, r is the radius of the blood vessel, and L is the length of the vessel.
During a marathon, the new radii of her blood vessels (r') are
The average radii of her blood vessels increased by a factor of 1.543