Prokaryotic cells doesn't have a nucleus.
Food and water supply,habitat space, and competition with other species
Answer: Water Volume: The volume of water(discharge) in a stream affects the energy(velocity) of that stream. As the volume of the water in the stream increases, the velocity increases. ... Incline gradient: The incline gradient is also known as the slope of the stream.
Explanation:
Answer:
The water vascular system of echinoderms d functions in locomotion and feeding
Explanation:
The water vascular system of echinoderms is a hydraulic system and is an unusual organ system. Echinoderms have a distinct endoskeleton. The water vascular system is essentially a system of fluid-filled canals. It uses water pressure to mediate <em>movement and helps in feeding</em>. It also asists in respiratory, excretory, and some circulatory functions.
