The proposed kingdom euglenozoa includes protists with one or two emerging from an anterior pocket.

Suppose you are estimating the size of a blue crab population. what is the population size if the number marked in the first catch is 40, the total number in the second catch is 200, and the number marked in the second catch is 50?

Where can you find prokaryotic and eukaryotic cells?

During convection, less dense fluid rises and denser fluid sinks.