Which group of algae is characterized by unicellular organisms and includes some members that would be better classified as zooflagellates?

Astudent drew the following flowchart to show the movement of nutrients. soil → roots → plants →? where does nitrogen go next? a. directly into nearby animals as nutrition b. directly into aquifers through condensation c. directly into the air through evaporation d. directly into nearby plants during fixation

When analyzing tree rings, what do scientists assume a thin ring indicates?

Most animal cells membranes have proteins that pump ions out of the cell and potassium ions into the cell