A. Prokaryotic cells DO NOT have a nucleus or membrane bound organelles. Eukaryotic cells do.
Explanation: A simple way to remember the is by PROkaryotic has NO nucleus. (Pro-no)
EUkaryotic has a nucleus.
(Eu- sound like you, you have cells and they have a nucleus.)
High-density means full and low density is more empty
Answer:
Glucose
Explanation:
Water is an obvious one. Dissolved in the water are traces of urea. And there are concentrations of sodium. No glucose though.
I am going to assume you meant the "first trophic level" of the ecosystem. The first tropic level of an ecosystem is made up of producers, so the answer is C, Acorns.