Answer:
<em>The water vascular system of echinoderms </em><em>functions in locomotion and feeding</em>.
Explanation:
Echinoderms have a unique vascular aquatic system called the <u>ambulacral system. </u>
The ambulacral system refers to a net of fluid-filled channels derived from the coelom with functions related to gas exchange, feeding, stimuli reception, and locomotion. This system acts as a hydro motor apparatus.
The opening to the exterior of this vascular system is through an opening known as madreporite. This structure is united to the circular channel that surrounds the animal´s mouth and from where five radial channels emerge and extend along each arm. Water runs through these structures and makes it possible the gas exchange, feeding, locomotion, and other functions. By hydrostatic pressure, little tubular feet are protruded and retracted and help the animal to move.
Convection currents, C! The plates move in a cycle called a convection cell that forms when warm material rise, cool, and even sink.
Answer:
Number 2 I believe would be correct. have a nice day
It forms when a low pressure area is accompanied by thunderstorms that produce a circular wind flow with maximum sustained winds below 39 mph.
If a population of rabbits is introduced to a population of dandelions the rabbits will end up eating all the dandelions
