You're gonna have to give us a picture to support your question..
The answer is B.
I think its safe to assume we all have had a cup of ice water. The ice always floats at the surface of the water.
Isn’t it active transport????
Limiting factors are what controls the population of an ecosystem. It also limits the kind of organisms that inhabit it. Limiting factors can be abiotic or biotic. Abiotic factors are the nonliving factors that affect the living ones. From the given options above, the only biotic limiting factor is vegetation. The correct answer would be option B.
Observation is broken up into three parts. The first is the date. Then you have the activity and last you have a brief description of what is being observed.
