Which small reptiles are mollusks?

Sluggs, leeches, maggots, caterpillars.

Common mollusks are snails, snails, mussels, cockles, squid, octopus, etc.

1. Snail: It is the most common mollusk on land, and the snail is an animal that includes many different families and genera.

2. River mussel: It is a general term for a group of animals in the mollusk phylum mussel family, which is called mussel shell and crooked child in some places.

3. Octopus: It is a temperate mollusk, living underwater, adapting to the water temperature can not be lower than 7, and the environment with low salinity will die.

Mollusks are the second gate in the animal kingdom.

The body is soft, generally symmetrical from left to right, and some species have various peculiar forms due to twisting and bending.

Usually shelled, asegmental, with fleshy feet or wrists, and degenerated feet. The outer layer** is folded from the back into a so-called coat, which surrounds the body and secretes a calcareous shell for protection.

The gills for breathing are found in the cavity between the coat and the body. It is distributed all over the land and water. Including bineuroids (e.g., turtles), gastropods (e.g., abalone, snails), pods (e.g., horned shellfish), valvegill (e.g., cockles, oysters), cephalopods (e.g., squid, nautilus), etc.

The mollusks involved in citrus pests are mainly gastropods.

Molluscas include snails, octopuses, earthworms, mussels, snails, cockles, and squid.

Oysters, scallops, mussels.

Nautilus, hydra, coral, razor clams, abalone, jellyfish, nudibranchs.

Sea anemones, tube worms, etc. Molluscs, also known as shellfish, are the collective name of molluscs and are the largest group of animals except arthropods, with about 100,000 species.

The main characteristics of mollusks are: soft body surface with mantle, mostly with shells; The locomotor organ is the foot. The morphological structure of mollusks varies greatly, but the basic structure is the same.

The body is soft and has a hard shell in which the body is hidden for protection, and they are quite slow to move due to the fact that the hard shell hinders movement. It is not segmented, it can be divided into three parts: head, foot, and visceral mass, and the outer membrane often secretes shells. The foot is shaped like an axe and has two shells, like an oyster.

Reptiles are almost all, except for amphibians, such as tigers, elephants, wolves, dogs, bears, cats, chickens, tigers, leopards, clouded leopards, snow leopards, Asiatic lions, leopards, lynxes, meerkats, large and small pandas, wolverine, Asiatic black bears, Indian rhinoceros, sika deer, spotted deer, elk, musk deer, roe deer, hedgehog, Malaysian tapir, high-nosed antelope, Arabian right-horned antelope, wild boar twisted horned antelope, Asian elephant, pangolin, proboscis monkey, Malayan flying monkey, Asian reticulated python, king cobra, in-tolerance flying lizard, Chinese monitor lizard, four-clawed tortoise, raw chicken, red-bellied pheasant, flying tree frog, duck and so on.

Animals that live on land are almost all air-breathing animals (De lufttiere; Anderson et al., 1924), some of the subterranean animals are microscopic animals that survive on dissolved oxygen in the respiring pore water, and are also terrestrial animals; In order to adapt to life on land, there are well-developed structures related to breathing air, preventing the evaporation of water in the body, supporting and moving the body, protecting eggs and larvae, and excreting the final products of nitrogen metabolism not in the form of ammonia nitrogen but in the form of urea and uric acid nitrogen.

Animals living on land are divided into: birds, mammals, reptiles, and amphibians.

1. Reptiles: evolved from the ancient amphibians at the end of the Carboniferous period, the heart has two atria and two ventricles, the ventricles have incomplete diaphragms, and the body temperature is not constant, which is truly adapted to terrestrial life of ectothermic vertebrates, and thus produces constant temperature birds and mammals. Reptiles are not only further adapted to terrestrial life in terms of adult structure, but also free from the constraints of water, and are called amniotes together with birds and mammals.

2. Birds: Birds feed on plant seeds, insects, voles or snakes, most of which are beneficial to humans. We need to protect the birds. Among them, there are migratory birds that are good at long-distance seasonal migration, and there are also resident birds that settle in small areas, which is a large group of animals in the animal kingdom.

3. Mammals: Most mammals are vertebrates with a whole body coat, fast movement, constant temperature viviparity, and diaphragm in the body, and are the most complex animal groups in the vertebrate body structure and functional behavior.

Mammals can be divided into protozoan subclasses, euzozon subclasses, and posterior zonal subclasses. Mammals are found all over the world and live a variety of lifestyles on land, underground, in the water and in the air. There are three types of nutrition: herbivorous, carnivorous, and omnivorous.

4. Insects: insects have a wide variety of different forms, belong to the arthropods of invertebrates, and are the most numerous animal groups on the earth, accounting for more than 50% of all biological species (including bacteria, fungi, and viruses), and their traces are almost everywhere in the world.

The distribution of insects is so wide that no other class of animals can compare with it, and it is almost all over the earth. There are different types. Most insects can be used as specimens, and they are a good biological resource that humans can use.

5. Poultry animals: Poultry refers to artificially raised birds and animals, mainly for the purpose of obtaining their meat, eggs and feathers, and also for other purposes. Generally pheasants and ducks, such as chickens, ducks, geese, etc., but also birds of other families such as turkeys, pigeons, quails and various songbirds.

In addition to providing human meat and eggs, poultry also have an important economic value for their feathers and droppings.

6. Fish animals: Fish are the oldest vertebrates. Some offspring of crosses with different chromosome numbers are still fertile.

They inhabit almost every aquatic environment on Earth, from freshwater lakes and rivers to saltwater seas and oceans. Fishes are divided into two general classes: jawless and jawed.

7. Carnivores: A class of animals that mainly eat meat. Commonly known as predator or carnivore.

The teeth are sharp and powerful, with carnivorous teeth (cleft teeth), i.e., the last premolar of the upper jaw and the first molar of the lower jaw. The two large cusps of the upper fissure and the two large cusps on the outside of the lower fissure act like a guillotine when biting, which can cut the ligaments and cartilage. The large teeth are unusually thick, long and pointed, quite sharp, and play a puncture role.