Earthworms are a type of annelids without obvious eyes. They belong to the phylum Invertebrates, Phylum Annelida, Subphylum Geminizoa, and Class Vermicomida. They mainly live in the soil. Although earthworms don't have complex eyes like humans or other animals, they do have a simple light-receiving organ called a "photoreceptor."
This photoreceptor is not a real eye, but a structure that senses light, helping the earthworm sense the intensity and direction of the surrounding light. The photoreceptors of earthworms are usually located at the front of the body and are called "front-end organs", which help them avoid light, find food, or avoid danger.
Earthworms mainly rely on other sensory organs to sense their surrounding environment, such as antennae, body surface receptors, and pressure sensors. These organs help earthworms sense soil moisture, temperature, the presence of chemicals, and the presence of plant debris, thereby helping them live in the soil and find food.
animal tags： earthworm
you may also like
Insects of this order are not closely related to humans. A few species harm flowers, stored grains, stored fruits, silkworms and fresh insect specimens. Some species are ectoparasites of bats and mice. Leatheroptera generally like to be active at night and often hide under soil, rocks, dead b...
There are also many diseases spread by flies, including enteritis, dysentery, typhoid, cholera, etc. House flies are the most common type of flies. They have lots of hair on their bodies and legs and like to eat feces and rotting plants and animals. When flies land on our food, they may have...
Grasshoppers, commonly known as locusts or grasshoppers, are insects native to temperate and tropical regions. Grasshoppers typically inhabit dry grasslands, deserts, and farmland. Grasshoppers are cold-blooded animals and they rely on external temperature to maintain their physiological acti...
1. Anchor moth Pterodecta felderi Bremer Insects of the family Anchoridae are active during the day and look like butterflies. A famous taxonomist once mistook an anchor moth with damaged antennae for a butterfly. There are about 50 species known in the world, m...
To distinguish between male and female praying mantises, you usually need to pay attention to characteristics such as body size, wing length, and abdominal shape. Here is a detailed introduction on how to tell the difference between male and female praying mantises:1. Body size:Male mantises are usu...
According to reports, there are about 6,000 kinds of pests that harm crops around the world. In my country, there are more than 250 kinds of rice pests, more than 1,000 kinds of fruit tree pests, more than 50 kinds of corn pests, and more than 300 kinds of warehouse pests. Armyworms, locusts,...
Commonly known as mud flies and fish flies, there are less than 300 known species in the world. They are mostly found near streams or other cool, moist environments, feeding on nectar and soft-bodied insects. The larvae are aquatic, found in lakes and streams, and prey on small aquatic animal...
Body length 9 to 11 mm. The head is very long, half of the base is in the shape of a thin rod, there are annular wrinkles on the surface, and the end is like a snake's head. Its elongated head is much longer than its body, standing like a giraffe. Its unique shape is eye-catching. In our coun...
Email: jsset#163.com (change # to @) Please indicate your purpose of visit! Guangdong ICP No. 2022053326 XML| map| Chinese
