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.
Answer:
c
Explanation:
The answer is c I think
Am not too sure but I think
People are challenging the the relevance because they don’t want people to vote and I disagree because it is not right to take away voting rights and automatically make someone president.
Horomones travel from endocrine glands through bloodstream to target organs
Answer:
c
Explanation:
ribosomes are used to synthesize proteins in cell. When it had been destroyed, the cell won't get proteins
