Please name the habits, characteristics and range of living habits of an aquatic animal

The habits of snakes.

The habitat of snakes varies according to their habits. The snake is an ectothermic animal. When the body temperature is high, the metabolic rate is high and the activity is frequent; When body temperature is low, the metabolic rate is low and activity is weakened.

In the scorching heat of summer, they like to live in shade of trees, grass, streams and other shady places. From autumn to winter, it gradually enters"Hibernation"Time limit. Ordinary venomous snakes have begun to hibernate in burrows one after another without eating, drinking, molting or molting since late November, when they often gather in dozens or even hundreds of clusters in burrows or tree cavities located in high dry places for the winter.

It wasn't until the spring of the following year that the flowers bloomed and woke up from their dormant state. It takes about three months from the human cave to hibernation, and it mainly relies on the nutrients stored in the body in the form of fat to be slowly replenished to maintain the minimum nutrients of life.

Venomous snakes can be divided into three categories according to their diurnal activities: the first type is those that like to move during the day, which is called diurnal snakes. The second type is afraid of bright light, prefers to be hidden during the day, and is active at night, which is called nocturnal snakes.

The third type is the snake that likes to be active in low light conditions (mostly at night and rainy daytime, and has strong cold tolerance), called morning and dusk snakes. Snake activity is much more affected by temperature than by light. For example, the diurnal cobra often appears at night in very hot summers; Morning and dusk pit vipers are often seen in low temperatures, when the sun is shining around noon, and are rarely active at night.

Generally speaking, the most suitable temperature for snake activity is between 20-30, and the optimal temperature for its activity is 10-35. More interestingly, snakes that live in the tropics are not only in winter"Hibernation", but also during the hot, dry summer months"Hibernation", as it is called in zoology"Summer hibernation"。When the hot and dry season arrives in the tropics, ponds and lakes may dry up due to prolonged periods of no rain, and snakes, like geckos, crocodiles, lungfish, and turtles in the grasslands, depend on conditions that become unfavorable.

In order to adapt to the environment so that they can continue to survive, they turn in"Underground", do not eat and do not move, enter"Summer hibernation"state in order to survive the hot and dry summer.

The main characteristics of the fish.

Fish live throughout their lives in seawater or freshwater, and most of them have a body shape and fins that are suitable for swimming. Breathe with gills and hunt with the upper and lower jaws. A beating heart is divided into an atrium and a ventricle.

The blood circulation is single-circulation. The appearance of vertebral vertebrae and heads allowed the fish class to develop and evolve into a group of vertebrates that are best adapted to life in the water. This is because the water is deep and shallow, and the pressure varies from place to place, from 1 atmosphere at sea level to 1,000 atmospheres in the deep sea.

The range of freshwater and seawater salt content from freshwater to saltwater is 0 001 7In addition, the difference in water temperature and oxygen content varies greatly depending on the geographical environment. Due to the diversity of these waters, water layers, water quality, and biotic and abiotic factors in the water, the body structure of fish changes differently to adapt to different changes in the external world.

It is higher than that of the Rotunda class.

Main differences: -Shape.

Movement - ** and derivatives.

Bone - Digestion.

Respiration - Circulating the blood circulation of the fish.

Excretion and osmoregulation.

The reproductive system of reproductive fish.

Nerves & Senses.

Incretion.

Since the question does not specify which animal, the following references are listed.

1. The living habits of earthworms.

Earthworms are nocturnal annelids that like temperature, moisture, quietness, light, salt, and tannins. Inhabits moist, well-aerated soil during the day. It generally roosts to a depth of 10 to 20 cm, and comes out at night to forage for food.

2. The living habits of snails.

The snail is a gastropod mollusc, which likes to inhabit the waters with warm winter and cool summer, soft bottom, abundant bait and fresh water quality, and especially likes to gather in places with slight flowing water.

3. The living habits of centipedes.

Under natural conditions, centipedes generally inhabit hillsides, fields, roadsides or overgrown places during the day, or in shady corners along the slopes, between firewood piles and tiles.

4. The living habits of hedgehogs.

Hedgehogs are very adaptable and not strict with their environment. However, hedgehogs have the habit of liking silence and fear of light, and are nocturnal, and the inner nest is a nest, and hay, pine leaves or straw are laid out. The outer nest is a place for activities, including mounds or mountains, flowers, grasses, shrubs, etc., so as to provide shade in summer and keep warm in winter.

Habit (xí xìng) is basically explained as a characteristic that has been cultivated over a long period of time under certain natural conditions or social environment. For example, "Preface to the Biography of Northern History: Confucianism": "The sons and grandsons of the emperor have arrogant habits.

Tang Du Fu's "Twenty-six Rhymes for Li Xiaoshu": "The habit of the child is to be sexual, and the evening season is lazy to turn the drama." There is also the meaning of cultivating temperament, such as "Northern History: The Biography of Chang Shuang":

In other words, the martyrs of the ancestors of the Six Classics and the grand events of the saints, can An Ke not wander in the habit of tattooing?

1 Feature: Invertebral BAI

Animals are more than du in the group of animals

The lower taxa, zhi it is with the spine dao

The corresponding category of push things, back to the clearest answer.

The obvious feature is that there is no vertebrae. Invertebrates are very large in both variety and quantity.

2 In terms of living environment, they can be found in the oceans, rivers, lakes, ponds, and marshes, as well as on the land; In terms of lifestyle, there are types of free life, parasitic life, and symbiotic life.

3 From the point of view of the way of reproduction, some species can reproduce asexually, some species can reproduce sexually, some species can reproduce both asexual and sexual, and some species can also reproduce larvae and parthenogenesis.

4 According to the evolutionary order of invertebrate propellers, it includes groups such as protozoa, sponges, coelenterates, flattened animals, nematozoa, annelids, molluscs, arthropods, echinoderms, etc.

5 Terrestrial and aquatic species include: Sea brocade, jellyfish, and corals are primitive animals. They originated 700 million years ago and have a very simple body structure unlike all other invertebrates.

Heterotrophs that live in water. They cannot produce food on their own and feed on plants, other animals and organic residues for nutrition.

(1) The body is spindle-shaped to reduce resistance and vortex (2) The body surface is covered with mucus to reduce frictional resistance, (3) Fin movement - the appearance of even fins lays the foundation for terrestrial animals to form paired appendages (4) Breathing with gills - unique respiratory organs in water (5) There are no salivary glands.

6) Single circulation, enough oxygen (7) Feel the external environment with the lateral line (8) In addition to urinating, the kidneys can also regulate the water balance in the body.

The characteristics of fish suitable for living in water: the body of the fish is fusiformal, and the body surface has a sticky and slippery feeling, which can reduce the resistance of the water; There are scales on the body surface that have a protective effect; The respiratory organ is the gills, which absorb dissolved oxygen in the water, swim with fins, etc. There is a lateral line in the body of the fish that can sense the current, and the direction of measurement is the sensory organ of the fish, and the back of the fish has a spine that is not suitable for life in the water

Therefore, d

Characteristics of fish suitable for living in water: The body of the fish is fusiform, and the body surface has a sticky and slippery feeling, which can reduce the resistance of the water; The body surface has scales, which have a protective effect; The respiratory organ is the gills, which absorb dissolved oxygen in the water, swim with fins, etc. There is a lateral line in the body of the fish that can sense the current, and the direction of measurement is the sensory organ of the fish, and the back of the fish has a spine that is not suitable for life in the water

Therefore, d