Answer:
Second!
Explanation:
speed and velocity are both measured using the same units.The S.I unit of distance and displacement is the meter. The S.I unit of time is the second. The S.I unit of speed and velocity is the ratio of two-the meter per second!
I hope it's helpful!
The molecules doesn't need energy to cross through.
The diffusion doesn't need protien, the molecules pass between phospholipids by passes protien. It moves smaller molecules. Facilitated need protien also hormone, and larger molecules.
I wish it makes sense.
<h2> ANSWER</h2>
<u>B.</u><u> </u><u>carbonate shells are dissolved in deep water</u>
Carbonate sediments are rare in deep sea sediments because the <u>carbonate shells are dissolved in deep water</u><u>.</u>
<h3>#CarryOnLearning</h3>
The correct answer is B !! Both are interdependent thus forming a mutualistic association !!
As both can not live without each other thus making obligate !!
so They share obligate mutual association !! Go with B !!