Morphological characteristics of 10 different organisms, 20 animal morphological characteristics

Introduction to animal morphological characteristics:

1. Sheep. Sheep are also known as sheep or white sheep. Hairy four-legged ruminants.

Originally for the Northern Hemisphere.

The product of the mountain, which is related to the goat; The difference is that the body is fatter, the body is plump, and the body hair is dense. Short head. Males have large, spiral-shaped horns, while females have no horns or only tiny horns.

2. Tiger. It's mammals.

of big cats.

The coat is light yellow or brownish-yellow, covered with black horizontal stripes; The head is round, the ears are short, the back of the ears is black, and there is a white spot.

Very significant; The limbs are strong and powerful; The tail is thick and long, with black rings, and the tail end is black.

3. Cattle. They are strong, often with bulges in their neck, shoulders, or backs supported by dorsal spines and well-developed muscles. There are suitable for long-distance running.

legs; There are 4 toes on the feet, but the side toes are more vestigial than those of deer; Both the incisors and canines are degenerated, and complex tooth patterns are formed on the surface of the crown after abrasion, which is suitable for grazing. 4 chambers of the stomach, perfect rumination; Adult males and females have cave horns, which are symmetrical bony branches derived from the protrusion of the frontal bone, which are not bifurcated, hollow inside, and covered with peelable horn sheaths on the outside, which are set on the bony horn center, and after the hole horns are removed, they can no longer grow.

The 20 species of animals in Insects are as follows:

1, stone silkworm 2, dung bee 3, cicada 4, plasterer bee 5, praying mantis 6, bee, cat and red ant 7, mine bee 8, firefly 9, tube worm 10, woodcutter bee 11, cotton bee and fat bee 12, Spanish rhinoceros 13, grasshopper 14, wasp 15, grub 16, cricket 17, red wasp 18, flytrap 19, parasite 20, pine caterpillar.

1. Stone silkworm: It belongs to the family of stone silkworm moths. Exterior features:

The head and prothorax are black, the wings are brown, and they are ridge-like when perched, and each foot is elongated. Living habits: The larvae are water-dwelling, and will spin the stones, fine sand, and dead branches in the stream water to bond into a nest, each species has a specific nest type, and the adults live near the stream, and the habitat is very large.

Second, dung beetles, commonly known as feces shells, belong to the Coleoptera Scarabidae. Appearance characteristics: black or black-brown body, large and medium-sized insects. Habits: Dung beetles can use the phenomenon of moonlight polarization to locate and help feed. There is a certain phototaxis.

3. Cicadas are a class of organisms of the phylum Arthropod, Insecta, Hemiptera, and Cicada family. Appearance characteristics: The cicada has two pairs of membranous wings, the shape is basically the same, the head is broad and short, and has a distinctly prominent frontal labial base; Visual acuity is quite good, the compound eyes are not large, located on both sides of the head and widely separated, and there are 3 monoculars.

The antennae are short and whiskered.

Habits: The larvae of cicadas live in the soil and have a pair of strong digging forefeet. The sap of plant roots is sucked by the piercing and sucking mouthparts to weaken the tree, make the branches die, and affect the growth of the tree.

Fourth, the waist bee is also known as the golden-rumped bee (plasterer bee) appearance characteristics: the head has two antennae, the end of the antennae is curved outward, the thorax is cylindrical, the tail is slender and the end is expanded, and the back four legs are long.

Habits: Next to the house, the main place will be chosen to be exposed to the summer heat. If possible, it's a good idea to have a larger stove and some firewood to burn.

Ceilings that have become jet black, wooden cracks, chimneys, etc. For example, in the flower room, in the kitchen, etc.

5. Appearance characteristics of the praying mantis: the body length is generally 55 to 105 mm, the African praying mantis is the largest in the world, the body is streamlined, mainly green, brown, and also has spotted species; The signature feature is the presence of two "broadswords", the forelimbs, with a row of hard serrations and climbing suction cups at the ends of the hooks.

Habits: Carnivorous, hunting all kinds of insects and small animals, can eliminate many pests in the field and forest areas, so it is a beneficial insect. Sexual cruelty and aggressiveness, lack of food, often large swallowing and female eating male.

<><1.Fur texture and color 2Body size 3

Skeletal structure and joints4Antennae or ear shape5Eye size and color6

Mouth and nose shape and size7Presence and size of wings or webbing8Body texture (**, scales, carapace, etc.) 9

Is saliva poisonous or edible10Patterns and patterns on the body 11Teeth and tooth shapes12

Size and shape of claws, soles of feet, or hooves13Whether there are special organs such as stingers or scissor hands on the body14Whether the body is segmented 15

The remains of a conch or other mollusk on the body 16Whether there are hairs or feathers on the body17The shape and size of the tail 18

**Color 19Whether the body has the ability to blend in with the environment (discoloration, etc.)20The body has hard carapace or coin-shaped scales.

According to the characteristics of the morphological structure of organisms, they can be divided into animals, plants, and other organisms.

Taxonomy is a fundamental method of studying living things. Biological classification is mainly based on the similarity of organisms (including morphological structure and physiological function, etc.), the organisms are divided into different levels such as species and genera, and the morphological structure and physiological function and other characteristics of each group are scientifically described, so as to clarify the genetic relationship and evolutionary relationship between the clusters of homogeneous groups.

Classification is based on the characteristics of organisms in terms of morphological structure and physiological functions. The basic unit of classification is species. The higher the taxonomic level, the less common denominator the organisms contained; The lower the taxonomic level, the more organisms have in common.

Understanding biological diversity, and protecting biological diversity, requires the classification of organisms.

Feature comparison is the basic method of classification. The so-called contrast is the contrast of similarities and differences: "different" is the basis for distinguishing types, and "same" is the basis for merging types.

To analyze taxonomic features, we must first consider common features that reflect a common origin. But there are homologous and non-homologous differences. For example, the wings of birds and the forelimbs of mammals are homologous tubes, which can be traced back to a common ancestor and are "homologous features".

Constant temperature in birds and beasts is of separate origin, not from a common ancestor, and is a "non-homologous feature". Homologous traits were used for systematic classification, and non-homologous traits were not taken.

Biologists divide organisms into the kingdom of plants, the kingdom of animals and the kingdom of microorganisms according to the degree of similarity between organisms, that is, their morphological structure. According to whether the living environment of the organism is aquatic or terrestrial, the organism can be divided into: aquatic organisms and terrestrial organisms; According to the use of organisms in life and production, they can be divided into poultry, livestock, crops, and pets

Basic characteristics of living organisms: 1. Organisms all have the role of reproduction. 2. Organisms have metabolic effects.

3. Organisms can grow and develop. 4. Organisms are all stressful. 5. Organisms have genetic variation.

6. Organisms can adapt to the environment and can also affect the environment. 7. Except for viruses, all living things are made up of cells.