Are tadpoles insects?

Speaking of insects, maybe we are already familiar with them. Colorful butterflies, bees visiting flowers to make honey, silkworm babies spinning cocoons, cicadas singing loudly, competitive crickets, fireflies shining with stars, dragonflies with agility resembling airplanes, simple and lovely field ladybugs, mantis glaring with a pair of broadswords, annoying flies, mosquitoes, cockroaches and so on. So, what do insects have? Are spinning spiders and spiny scorpions insects? What about Ma Lu and centipede? You may not be able to answer all these questions. Now let's see what kind of insect is an insect.

Insects, like other organisms, have their own special taxonomic status. It belongs to Insecta of Arthropoda in the animal kingdom. Its main features are as follows (imitation color map):

(1) Body link is divided into three body segments: head, chest and abdomen, but they are not divided.

(2) The head is the center of sensation and feeding, with mouthparts (mouth) and 1 pair of antennae, usually with compound eyes and monocular eyes;

(3) The chest is the sports center, with 3 pairs of feet and generally 2 pairs of wings;

(4) The abdomen is the center of reproduction and metabolism, which contains genitals and most internal organs;

(5) In the process of growth and development, insects have to undergo a series of internal and external morphological changes before they can be transformed into adults. This change in posture is called metamorphosis.

(6) The chirping insect is male, but the female can't sing.

Therefore, the basic characteristics of insects can be summarized as follows: "the body has three sections: head, chest and abdomen, two pairs of wings and six feet;" 1 The pair of antennae are born in the head and the bones are wrapped in the body; There are many changes in life forms all over the world. "

With the concept of insects, you now know the answer to the last question: spiders and scorpions are not insects, because they have head, chest and abdomen and eight legs. Centipede and Ma Lu have more legs, and almost every link (body segment) has 1 ~ 2 pairs of feet, not to mention insects.

Are tadpoles insects?

Tadpoles are not insects.

Insects, like other organisms, have their own special taxonomic status. They belong to Insecta of Arthropoda in the animal kingdom. Its main features are as follows:

(1) Body link is divided into three body segments: head, chest and abdomen, but they are not divided.

(2) The head is the center of sensation and feeding, with mouthparts (mouth) and 1 pair of antennae, usually with compound eyes and monocular eyes;

(3) The chest is the sports center, with 3 pairs of feet and generally 2 pairs of wings;

(4) The abdomen is the center of reproduction and metabolism, which contains genitals and most internal organs;

(5) In the process of growth and development, insects have to undergo a series of internal and external morphological changes before they can be transformed into adults. This change in posture is called metamorphosis.

(6) The chirping insect is male, but the female can't sing.

Are tadpoles insects?

Tadpoles are larvae of frogs and toads. They are amphibians, not insects.

Dragonflies, earthworms, tadpoles and spiders are not insects.

Of the four animals, only dragonflies are insects, belonging to Arthropoda and Insecta. So it is an insect. The other three are not insects.

Earthworms belong to annelids, annelids and one-way earthworms. They are annelids.

Tadpoles belong to Amphibia, Anura, and are the larvae of amphibian frogs or toads.

Spiders belong to the arachnid class. Although it belongs to the arthropod phylum with dragonfly, it is not a class or an insect.

Dragonflies, earthworms, tadpoles and spiders are not insects.

Dragonflies belong to Odonata, Insecta and Arthropoda.

Earthworms belong to Oligochaeta of Annelida;

Tadpoles belong to Anura, Amphibia and Chordata.

Spiders belong to the arachnid class of Arthropoda.

I can understand you asking if spiders are insects, but there is a big difference between earthworms and tadpoles. . . .

By the way, the characteristics of insects belong to hexapod, so all insects are hexapod, divided into three parts: chest and abdomen, and most of them have wings.

Are tadpoles beneficial insects? 30 points

Tadpoles are beneficial insects, because tadpoles grow up to be frogs and frogs eat pests.

Frogs are experts in exterminating pests. A frog eats about 70 bugs a day, which is more than one year 1550. It often crouches in rice fields, ponds, ditches, or grass and seedlings along the river, protruding a pair of big eyes, staring at the distance, motionless, and closely monitoring the surrounding movements. If a flying insect passes by, it will immediately jump up, stick out its tongue and roll the insect into its mouth. Frogs have a big mouth and a long forked tongue. Its tongue is different: it grows not in the back of the mouth, but in the front of the jaw, and its tongue turns to the throat. When catching a flying insect, it suddenly turned its tongue out of its mouth. As soon as the flying insects touch the mucus on it, they are stuck. The frog flipped its tongue quickly and the flying insects got into its belly. Frog's eyes are very strange. They can almost "see through autumn" to moving insects, but "turn a blind eye" to still mountains, trees and houses.

Are frogs insects? What kind does it belong to?

Frogs are not insects, but amphibians. When they are mosquitoes or flies, they live in water. When they were young, they lived in water. When they become adults, they leave the water and live on wet land, and then they will return to the water to lay eggs.

Most insects have six legs and are divided into many kinds, such as HYMENOPTERA, COLEOPTERA and so on. Of course, there are also six enough insects, such as hundred feet and centipedes.

How many insects can tadpoles eat a year?

It eats at least fifty or sixty pests a day and at least ten thousand a year. What a considerable number! Tadpoles, children of frogs, also have the ability to eat pests. A tadpole eats 100 dragonflies a day. So frogs are well-deserved "farmland guards".

What animal family does tadpoles belong to?

Insect bean