Are spiders insects or spiders Do spiders belong to insects

Spiders are not insects.

Spiders are not insects, but belong to the arachnids of arthropods, and insects belong to different branches of arthropods.

Spiders are generally considered to be insects, but they are not insects, just like scorpions and centipedes.

The main characteristics of insects are: the body is divided into three parts: head, thorax and abdomen, with three pairs of feet and two pairs of wings, and the internal and external morphological changes during growth and development.

The body of the spider is only 2 parts, it has 8 legs, and it does not undergo morphological changes during development.

Spiders feed on insects, other spiders, myriapods, and some spiders also feed on small animals. Jumping spiders have good eyesight and can dive up to 30 cm to catch their prey.

Because spiders are highly sensitive to changes in environmental factors including habitat structure, habitat type, wind, humidity and temperature, they can be used as indicator groups to monitor changes in habitat and biodiversity.

The changes in species composition and abundance have become important indicators for environmental monitoring, which can well reflect the process of environmental change and its impact on biodiversity.

Spiders are not insects. Spiders belong to the class Arachnids in the phylum Arthropoda, Chelicerae subphylum, whereas insects belong to the class of insects in the phylum Arthropods, so spiders do not belong to insects. The most common locusts, butterflies, bees, dragonflies, flies, grasshoppers, cockroaches and other bush limbs are insects.

There are a total of 14 orders in the Arachnida, 5 of which have been extinct, and 7 orders have been found in China. There are 42,751 species (subspecies) of spiders in 3,859 genera and 110 families in the world, and more than 3,800 species in 67 families in China.

Insects are the most abundant group of animals on the planet, accounting for more than 50% of all living species (including bacteria, fungi, and viruses). Until the beginning of the 21st century, there were more than 1 million species of insects known to mankind.

Are spiders insects?

It's actually quite simple! Spiders are not insects. All members of the insect family have such a condyle, that is, the whole body of the adult worm is divided into three parts: head, thorax, and abdomen, and six buried burning legs and two pairs of wings will grow on the chest.

On the insect's head, there is also a pair of flexible antennae and two strange abdominal eyes. Why is it said that spiders are not insects? Because spiders have 8 legs, they have neither antennae nor ventral eyes on their heads, and their heads and thorax are joined together.

Moreover, spiders belong to the class Arachniformes. Inside of the spider: The body of an arachnid is divided into three parts: anterior, middle, (cephalothorax), and posterior (abdomen).

Spider animals have four pairs of legs. Life cycle of spiders: Arachnids, such as spiders, lay eggs that hatch into small spiders.

After several shedding of their skin, they grow into large spiders. Moreover, spiders belong to the category of arthropods.

Arthropods are made up of body structures and have a harder shell. As arthropods grow, they shed their shells.

Arachnids include: spiders, mites, scorpions, etc. There are 73 000 species divided into 10 orders, of which 4 are ordered.

Name: Species: Scorpion (Scorpion) 2 000 Arachnidas (Spider Bend Wild Void Spider) 40 000 Blind Arachnia (Blind Spider) 4 500 Sun Spider (Sun Spider) 900 Spiders are not insects.

Although belonging to the same phylum Arthropods, spiders do not belong to the class Insecta but to the class Arachniformes.

The body of the spider is divided into only two parts, the head and the abdomen, and has 8 legs; The body of an insect is divided into three parts: head, thorax and abdomen, and has 6 legs. The friendship between spiders and insects is not only not deep, but also "enemies", and spiders can also devour 80% of insects, if it is related, scorpions are the "close relatives" of spiders.

Spiders are not insects. Insects refer to animals of the class Insecta of the phylum Hexapod of the phylum Arthropods, whereas spiders are animals belonging to the class Arachnids of the phylum Chelicera. Spiders are the most abundant predatory natural enemies in terrestrial ecosystems, which can maintain the stability of agricultural and forestry ecosystems.

The body is 1 90 mm long, and the body is divided into two parts: cephalothorax (anterior) and abdominal (posterior), and the cephalothorax is covered with dorsal armor and chest plate. There are two pairs of appendages in the cephalothorax, the first pair is chelicera, with chelicera, and the tip of the chelicera has a toxic gland opening; The second pair is whiskered, which are foot-like in females and immature males to hold food and act as sensory organs.