How do hydras hunt, how do they hunt and how do they digest them?

Hydra. The body captures food with its freely retractable tentacles, the food, curls it into the mouth, and swallows it.

Methyl bodies, at different stages of development, are able to swallow bait in different sizes. For example, in the 4-tentacle stage, the whole nauplii of the abundant insect cannot be swallowed, but in the floating larval stage, it can smoothly swallow the shellfish.

The larvae of the trochal, when attached to the polyps after a few days, can devour crustaceans.

of nauplii, telepods and small copepods, etc. The amount of food that the polyps eat.

Small, especially the polyps with 4 and 8 tentacles, feed 50-200 splanktonic larvae or trachala larvae per day, or feed on the auplii of the abundant insects.

There are tentacles around the mouth, which are tools for predation.

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There are tentacles around the mouth, which are tools for predation.

The tentacles catch the prey, stutter it, and digest it in the digestive cavity.

Hydra feeds and excretes from the mouth, which says something.

Question 1: What kind of animal is Shuixi (hydra) Invertebrates, coelenterates, hydra. The body is small, tubular in shape, with a basal disc at the lower end, a mouth at the upper end, and 6 10 small tentacles around it, which are full of stinging cells, which can shoot spikes and venom to capture small bait.

Both the body and the tentacles can be contracted, visible to the naked eye when elongated, and microspherical when reduced. The substrate can slide over attachments, or act in a somersault, sometimes floating on the surface. When the environment is suitable, it is generally budding and propagating.

When the environment is bad, **-shaped ovaries and sperm nests can be born for sexual reproduction. The fertilized egg develops into a shelled embryonic body, that is, it enters the dormant stage, and when the environment is suitable, it develops into a new individual. Generally, it is mostly attached to ponds, marshes, aquatic plants, stones and other objects in the water.

Extremely regenerative power. The most common are Hydra fusca, grayish-brown with pale white petioles; Green hydra (Hydra viridis), dark green, symbiotic with a single-celled algae.

Question 2: What are the characteristics of hydra? Coelenterates such as sea anemones, jellyfish, and jellyfish have the following characteristics: they live in water, their bodies are radially symmetrical, and their body walls are composed of two germ layers, with mouths and mouths

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Question 3: What is the mode of reproduction of hydra One of the asexual forms of reproduction is budding reproduction.

Question 4: What is the main way to produce hydroids Hydroids are raised indoors, if the living conditions are good, especially when feeding live fish and insects, they tend to grow quickly and slip, and often reproduce asexually by budding reproduction. The 1 3 places at the end of the remaining side of the body are the budding areas, and each bud is a small polyp at first, and then its foot disc is closed and separated from its parent to form a new individual.

Under good feeding conditions, the number of maternal buds is large, generally 6 7, up to 18, so many new shoots, often arranged in a spiral shape on the mother.

Hydrop sexual reproduction is generally twice a year, time in early spring and late autumn, in the process of feeding and raising polyps, if the water temperature is artificially changed, such as from 15 to 20 or from 20 to 15, can cause the development of polyp ovaries and sperm nests, and promote its sexual reproduction.

Most hydroids are dioecious and have strong reproductive ability, often forming ovaries or sperm nests while still budding and breeding.

Question 5: What is the food of hydroids The food of hydroids is mostly small crustaceans (daphnia), aquatic oligochaetes and larvae of insects.

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Hydras are aquatic insects, and they belong to the order Dragonflies. In terms of food and predation methods, the hydra is a very special insect. Hydroids can be very flexible in the water to prey on insects such as insects, moths, aphids and other insects flying above the water surface, and have a very high success rate of predation.

While hunting, hydras can launch surprise attacks from all directions to capture their prey. They can dive into the water to lurk and wait for their prey, or they can spread their front paws to stick to a swimming insect and then grab it with the barbed hooks on their hind legs. In addition, the hydra can quickly swim towards its prey, then clamp it in half and swallow it.

In terms of defense capabilities, hydras also have certain defense mechanisms. The hair on the surface of their body can reduce their exposure to parasites and bacteria, while also reducing their odor by rubbing their body to avoid detection by predators. In addition, hydras can also use their adhesive feet to escape quickly.

In summary, hydra can prey on food from all directions, and it also has a certain defense mechanism when matched with high temperatures.

Hydroids are aquatic insects that can usually hunt their prey from all directions. Their forelimbs are long and strong and allow them to quickly catch their prey, while their hind legs are specialized as swimming organs that allow them to quickly traverse the water to chase their prey. In addition, hydroids can also use the sensors on their heads to sense the movement and direction of their prey, so as to better prey on prey.

Hydras also have some defensive capabilities, and they can use their shells and some special structures to protect themselves. For example, their head and thorax are protected by a hard shell, while they have many small spines on their abdomen and back that can make it uncomfortable for potential predators. In addition, hydras can also use their ability to fly in front of them to escape from danger.

Hydras are highly adaptable freshwater creatures that can be adapted from all directions to prey on tiny aquatic animals through mucus and wriggling around their bodies. At the same time, they can also defend themselves against predator attacks by curling their bodies into balls, or twist their bodies in other directions to escape threats.

Hydroids have sharp antennae and can detect faint vibrations in their surroundings to determine the presence of prey or predators. When hunting, the hydra can quickly approach its prey from all directions and use its powerful mouthparts to trap it and suck bodily fluids.

In conclusion, the polyp has flexible locomotion and excellent predation skills, allowing it to hunt and defend from all directions.

Hydra can prey and defend from all directions, and the action is relatively flexible, there are posture pants in various parts of China and survival, living in the water filial piety all the year round, clever and very strong.