What does cardiovascular mean????????????????????????????????????????????????????????????????????????
Answer:
Instantaneous speed is found by taking the absolute value of instantaneous velocity, and it is always positive. Average speed is the total distance traveled divided by elapsed time.
A. Nutrients and other materials pass through the cell membrane through the process of diffusion. This allows the cell to perform all the activities it requires for daily maintenance and living. The concentration gradient allows the cell to regulate just how much of a certain material passes through it.
<span><span>Chaetognaths worms </span>are the transparent worms that prey on the other plankton.
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