Ablue whale is an example of which of the following?

nekton
zooplankton
benthos
phytoplankton

Despite the differences in mature plant cells, all of them are derived from meristem cells. the three major types of tissue systems develop from the meristem. meristems develop cells in all but which tissue?

Variety of living organisms; includes genetic, species, and ecological types.

Which level of taxonomy has the fewest organisms?