Question

Earthworm is
A. Nocturnal
B. Diurnal
C. Aquatic
D. All the above.

Answer 1

The phylum Annelida includes earthworms, which are terrestrial invertebrates. They have a tube-within-a-tube body plan, external segmentation that corresponds to internal segmentation, and seat on both segments. They can be found wherever there is suitable soil, water, and temperature.

Complete answer:
Option A: The earthworm is a reddish-brown terrestrial invertebrate that lives in the upper layers of wet, rotting soil. It is nocturnal and lives in burrows dug by boring and eating the dirt during the day. As a result, the right response is 'Nocturnal.'
So, option A is correct.
Option B: The rising and lowering of the sun wakes and sleeps diurnal beings. Squirrels, chipmunks, and ground squirrels, raptors such as bald eagles, hawks, and osprey turtles, and most mammals are among the wildlife that live in Iowa.
So, option B is incorrect.
Option C: The term "aquatic" refers to anything that has to do with water, like people who live in or near water or events that take place in water. It excludes freshwater.
So, option C is incorrect.
Option D: As we know that earthworms are nocturnal and are not diurnal and aquatic.
So, option D is incorrect.

So, Option A is the correct answer.

Note:
While most members of this genus are just a few inches long, some have been known to extend to a serpentine $14$ inches. The earthworm bodies consist of annuli, which are like a ring. Setae, or thin bristles, surround these segments, which the worm uses to travel and burrow. The worm's mouth is located in the first row. They eat soil when burrowing, collecting nutrients from decomposing organic matter such as leaves and roots. Earthworms are important for soil health because their waste carries nutrients and minerals from below to the surface, and their tunnels aerate the soil.