What kind of symmetry do cnidarians and ctenophores have?

Both cnidarians and ctenophores are diploblastic animals. Cnidarians exhibit radial symmetry whereas ctenophores exhibit biradial symmetry. Both contain tentacles, surrounding their mouth. The main difference between cnidarians and ctenophores is their body symmetry.

1. What symmetry do ctenophores have?
2. What type of symmetry does Cnidaria have?
3. What kind of symmetry do most cnidarians have?
4. What kind of cleavage do Cnidaria have?
5. Why do cnidarians have radial symmetry?
6. Do all cnidarians have radial symmetry?
7. What type of symmetry do protozoa have?
8. Are Cnidaria sessile or motile?
9. Are Cnidaria bilateral or radial?
10. Are chordates bilateral symmetry?
11. Are arthropods radial or bilateral?
12. Are cnidarians asymmetrical?
13. Do Ctenophores have nematocysts?
14. What is the difference between radial symmetry and bilateral symmetry?
15. Where are tentacles on Cnidaria?
16. Do the Cnidaria have tissues if so what kind of tissues do they have?

What symmetry do ctenophores have?

Ctenophores do not have radial or bilateral symmetry, they have rotational symmetry. There is no plane that divides them into mirror images, as in animals with bilateral or radial symmetry.

What type of symmetry does Cnidaria have?

Radial symmetry (sort of)

Another important characteristic of some cnidarians is that they have bodies with nearly radial symmetry.

What kind of symmetry do most cnidarians have?

Cnidarians have radial symmetry and true tissues. Some cnidarians form colonies, such as corals.

What kind of cleavage do Cnidaria have?

Virtually all cnidarians lack such a regular cleavage program. In fact, cnidarian development of- ten involves "chaotic" cleavage in which no two embryos in the same spawning will exhibit an identical cleavage pattern.

Why do cnidarians have radial symmetry?

Radial Symmetry. The body parts of a radially symmetrical animal are arranged around a central axis so that each part extends from the center. ... Radial symmetry allows them to reach out in all directions. Cnidarians have two tissue layers.

Do all cnidarians have radial symmetry?

All cnidarians have a central point or axis, and if you divide a cnidarian through this central axis, you'll end up with equal parts on either side. Even though cnidarians vary a great deal, they all have radial symmetry as a common characteristic.

What type of symmetry do protozoa have?

Protozoa Symmetry: will show radial symmetry in some organisms, bilateral symmetry in some organisms& some organisms are asymmetrical. Protozoan's may live singly or some are colonial. Protozoa body wall: these animals body covered by cell membrane which contain proteins and lipids.

Are Cnidaria sessile or motile?

Cnidarians have two distinct morphological body plans known as polyp, which are sessile as adults, and medusa, which are mobile; some species exhibit both body plans in their lifecycle.

Are Cnidaria bilateral or radial?

Cnidarians are generally believed to be radially symmetrical animals, but some cnidarians, such as the sea anemone Nematostella, display bilateral symmetry with an oral-aboral axis and a directive axis, which is orthogonal to the oral-aboral axis.

Are chordates bilateral symmetry?

Chordates are also bilaterally symmetric, have a coelom, possess a circulatory system, and exhibit metameric segmentation. ... The Chordata and Ambulacraria together form the superphylum Deuterostomia.

Are arthropods radial or bilateral?

One character inherited by all arthropods is bilateral symmetry.

Are cnidarians asymmetrical?

Cnidarians in both groups have an external radial symmetry, yet internal asymmetries and bilaterality are displayed in many groups.

Do Ctenophores have nematocysts?

Jellyfish and ctenophores both have tentacles with specialized cells to capture prey: nematocysts and colloblasts, respectively.

What is the difference between radial symmetry and bilateral symmetry?

The balanced distribution of the body shapes is referred to as the biological symmetry. ... The key difference between radial and bilateral symmetry is that radial symmetry generates identical body halves around the central axis whereas bilateral symmetry generates only two sides as left and right.

Where are tentacles on Cnidaria?

Cnidarians, such as jellyfish, sea anemones, Hydra and coral have numerous hair-like tentacles. Cnidarians have huge numbers of cnidocytes on their tentacles. In medusoid form, the body floats on water so that the tentacles hang down in a ring around the mouth.

Do the Cnidaria have tissues if so what kind of tissues do they have?

All cnidarians have two tissue layers. The outer layer is called the epidermis, whereas the inner layer is called the gastrodermis and lines the digestive cavity.