A Rill Is the Precursor to a Brook, Creek, Stream

question 50

True/False

A rill is the precursor to a brook, creek, stream, or river.

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Definitions:

Unicellular

Composed of a single cell, characteristic of organisms that perform all life processes within a single cellular structure.

Euglenoids

A diverse group of single-celled, flagellate protozoans, many of which are photosynthetic, found mostly in fresh water.

Photosynthetic

Refers to organisms that can produce their own food by converting light energy into chemical energy through the process of photosynthesis.

9 + 2 Arrangement

The structural organization of microtubules in a eukaryotic flagellum or cilium, consisting of nine doublets surrounding two singlets.