0
What else can I help you with?
What are the few organs that Cnidarians have?
Cnidarians have a simple body plan with a sac-like structure composed of three layers of cells: the epidermis, the gastrodermis, and the mesoglea. They possess specialized cells called cnidocytes that contain stinging structures called nematocysts, used for defense and capturing prey. Cnidarians also have a simple nerve net for coordinating movements and responses.
What beautiful bowl shaped animal floats near the surface of water trailing stinging tentacles?
The animal you're describing is likely the jellyfish. Jellyfish have a bell-shaped, gelatinous body and are often found floating near the surface of the water. They possess trailing tentacles equipped with stinging cells called nematocysts, which they use for capturing prey and defense. Their ethereal beauty and varied colors make them fascinating to observe in their natural habitat.
Do cnidarians have nervous systems?
A cnidarians nervous systems Is a simple nerve net A cnidarians nervous systems Is a simple nerve net
What cells do cnidarians use for protection?
Cnidarians use specialized stinging cells called cnidocytes for protection. These cells contain nematocysts, which can inject venom into potential threats or predators. When triggered, the nematocysts shoot out barbed threads that can immobilize prey or deter predators.
What are characteristics of coelenterate?
Characteristics. All coelenterates are aquatic, mostly marine. The bodyform is radially symmetrical, diploblastic and does not have a coelom. The body has a single opening, the hypostome, surrounded by sensory tentacles equipped with either nematocysts or colloblasts to capture mostly planktonic prey.
True or false All cnidarians possess long extensions of the body called tentacles?
A:True
What are the appendages in cnidaria?
Appendages in cnidarians are called tentacles . They are used in food capture and defense . Stinging cells are present in tentacles .
What structure are the stinging cells of cnidarians located?
The stinging cells of cnidarians, called cnidocytes, are located on specialized structures called nematocysts. These nematocysts are found on the tentacles of cnidarians and are used for defense and capturing prey.
What is the armlike structure that surrounds a cnidarians mouth called?
what is the arm like structures surrounding the mouth of cnidarians
On what structure are the stinging cells of cnidarians located?
The stinging cells of cnidarians, called cnidocytes, are usually located on specialized structures called tentacles. These tentacles are used by cnidarians for defense, capturing prey, and delivering venom.
What are the few organs that Cnidarians have?
Cnidarians have a simple body plan with a sac-like structure composed of three layers of cells: the epidermis, the gastrodermis, and the mesoglea. They possess specialized cells called cnidocytes that contain stinging structures called nematocysts, used for defense and capturing prey. Cnidarians also have a simple nerve net for coordinating movements and responses.
What kingdom do cnidarians belong?
Cnidarians belong to the Kingdom Animalia. They are characterized by their radial symmetry, tentacles with stinging cells called cnidocytes, and a simple nerve net.
What are the fingerlike extensions with specialized stinging cells found on all cnidarians?
They're called cnidocytes. ^^
Why might stinging tentacles be advantageous for slow moving predators such as some cnidarians?
All Cnidarians have tentacles with stinging cells in their tips which are used to capture and subdue prey. In fact, the phylum name "Cnidarian" literally means "stinging creature." The stinging cells are called cnidocytes and contain a structure called a nematocyst.
What do cnidarians use there tentacles for?
Cnidereans have pressure-sensitive poison glands called nematocysts that are usually on their tentacles. When their [prey] touches these nematocysts, small "fangs" inject poison into the [prey]. The poison in the nematocysts can paralyze or even kill small animals. Once the prey is subdued, the tentacles pull the prey towards the mouth.
What is the general structure of cnidarians during the medusa?
Cnidarians in their medusa form typically exhibit a bell-shaped, free-swimming body structure. They have a gelatinous umbrella-like body called the bell, which is equipped with tentacles hanging downwards, containing specialized cells called cnidocytes for capturing prey. The body is radially symmetrical, with a central mouth opening surrounded by the tentacles, and they possess a simple nerve net for coordinating movement. This structure allows them to effectively navigate and capture food in their aquatic environments.
What are three characteristics that all have in common?
All cnidarians live in water, have tentacles with specialized stinging cells called nematocysts, and have an internal sac for digestion which is called the gastrovascular cavity.
