What are the simplest animals with bilateral symmetry?

Which group of animals includes the simplest animals with bilateral symmetry? (The name of this phylum is Platyhelminthes, which includes flatworms, the simplest animals to exhibit bilateral symmetry.)

1. What is the simplest animal to have symmetry?
2. Which types of animals are bilateral in symmetry?
3. What is an example of a shape with bilateral symmetry?
4. Which animal has a bilaterally symmetrical body plan?
5. Do fishes have bilateral symmetry?
6. What animal has radial symmetry?
7. Do reptiles have bilateral symmetry?
8. Are jellyfish bilaterally symmetrical?
9. Does a seahorse have bilateral symmetry?
10. Why are animals bilaterally symmetrical?
11. What is radial symmetry give an example of an animal with radial symmetry?
12. Do butterflies have bilateral symmetry?
13. Are Cnidaria bilaterally symmetrical?
14. Which of the following is bilaterally symmetrical?

What is the simplest animal to have symmetry?

The simplest animals include the sponges (Porifera) and the Cnidaria. Sponges are unsymmetrical or radially symmetrical, with many cell types but no distinct tissues; their bodies contain numerous pores and sharp protective spicules.

Which types of animals are bilateral in symmetry?

Bilateral symmetry involves the division of the animal through a sagittal plane, resulting in two mirror-image, right and left halves, such as those of a butterfly, crab, or human body. Animals with bilateral symmetry have a “head” and “tail” (anterior vs.

What is an example of a shape with bilateral symmetry?

For example, a square has bilateral symmetry, and so does a circle. So does a rectangle. An isosceles triangle also has bilateral symmetry. This is a rhombus, divided so you can figure out the area.

Which animal has a bilaterally symmetrical body plan?

Butterflies are an excellent example of near perfect bilateral symmetry. Not only do they have a body shape that can be divided into symmetrical halves, but also the patterns on each wing of a butterfly are near identical to each other.

Do fishes have bilateral symmetry?

Most creatures we see around us have bilateral symmetry. Examples are worms, insects, spiders, fish, birds and mammals, including humans. In evolution, bilateral symmetry was an important step toward the development of a head and the concentration of sensory organs.

What animal has radial symmetry?

Radial symmetry is found in the cnidarians (including jellyfish, sea anemones, and coral) and echinoderms (such as sea urchins, brittle stars, and sea stars).

Do reptiles have bilateral symmetry?

Bilateral symmetry is characteristic of the vast majority of animals, including insects, fishes, amphibians, reptiles, birds, mammals, and most crustaceans.

Are jellyfish bilaterally symmetrical?

Despite the diversity within the jellyfish clade, Medusozoa, all 200 described jellyfish species exhibit radial symmetry. This means that their appendages radiate outward from a central point – akin to the spokes of a bicycle wheel.

Does a seahorse have bilateral symmetry?

As it is a member of the Chordata, it is a deuterostome - meaning that its anus develops prior to its mouth - and a triploblast - meaning it contains an endoderm, ectoderm, and mesoderm with bilateral symmetry. It is also a member of the subphylum vertebrates because it has vertebrate structures.

Why are animals bilaterally symmetrical?

Having bilaterally symmetrical bodies (the same on both sides along an axis) permit them to propel forward in a straight line. In evolutionary history, animals that moved quickly and efficiently from point A to point B would have been more successful and selected for than those who were ineffective at locomoting.

What is radial symmetry give an example of an animal with radial symmetry?

Because of the circular arrangement of their parts, radially symmetrical animals do not have distinct front or back ends. They may have distinct top and bottom sides. Some examples of these animals are jellyfish, sea urchins, corals, and sea anemones. A bicycle wheel also has radial symmetry.

Do butterflies have bilateral symmetry?

Butterflies and moths are great examples of creatures that show bilateral symmetry. They have a single line of symmetry down the middle of their body, meaning the patterns on their wings are the same on both sides.

Are Cnidaria bilaterally symmetrical?

Comparative analysis provides evidence that bilateral symmetry is a primary character of Cnidaria. All anthozoan taxa are characterized by bilateral symmetry. ... The bilateral symmetry of Cnidaria is thought to be inherited from the common ancestors of both cnidarians and triploblastic bilaterians.

Which of the following is bilaterally symmetrical?

Detailed Solution. The correct option is Earthworm. The earthworm is a bilaterally symmetrical organism. It belongs to the phylum Annelida.