Answer:
the correct answer is b: fluid
Explanation:
i did it and got it wrong and it gave me the correct answer
Answer:
Index Fossils can be used to identify a specific time period.
Explanation:
There are a few vital characteristics to mention here. First we have to know about which ions we're talking about as the cellular membrane is semi-permeable (lets some flow freely through the membrane and some not), it depends on the size of the compounds, and also the charge that a molecule has.
B. A b and d are eukaryotic
