Question: Which Two Of These Characteristics Does An Organism With Bilateral Symmetry Possess?

What is bilateral symmetry class 9?

Bilateral symmetry is the symmetry in which an organism is exactly divided into right and left halves by a single line of symmetry.

e.g.

Butterfly.

The organisms which exhibit this type of symmetry are called as bilaterally symmetrical organisms..

What are the three types of symmetry?

There are three types of symmetry: reflection (bilateral), rotational (radial), and translational symmetry.

Why do we have bilateral symmetry?

Having bilaterally symmetrical bodies (the same on both sides along an axis) permit them to propel forward in a straight line.

What is the advantage of asymmetry?

Benefits of asymmetry sometimes have to do with improved spatial arrangements, such as the left human lung being smaller, and having one fewer lobes than the right lung to make room for the asymmetrical heart.

Does a jellyfish have bilateral symmetry?

People, dogs, cats, and elephants all have bilateral 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.

What is a characteristic of a bilateral animal?

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. posterior), front and back (dorsal vs.

What is difference between radial and bilateral 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.

What is symmetry and its types?

Objects are said to be symmetrical if their pre-image and image have the same size and shape, but are either mirror images of each other or one has been rotated to go in a different direction from the first. There are three basic types of symmetry: reflection symmetry, rotational symmetry, and point symmetry.

Which symmetry is most common in animals define it?

bilateral symmetryThe vast majority of animals display bilateral symmetry; also known as plane symmetry, this is a trait that applies to 99% of all animals, in the majority of phyla: Chordata, Annelida, Arthropoda, Platyzoa, Nematoda, and most Mollusca.

What is the definition of bilateral symmetry?

: symmetry in which similar anatomical parts are arranged on opposite sides of a median axis so that only one plane can divide the individual into essentially identical halves.

What is the advantage of bilateral symmetry?

The advantages of bilateral symmetry include the formation of a head and tail region, where the head region can house a detailed nervous system, and more directional movement to include the ability to move straight forward.

Which of the following is a characteristic of animals with bilateral symmetry?

What characteristics do animals share with bilateral symmetry? They are larger and more complex than radial symmetry. They move more quickly and efficiently. They have streamlined bodies.

What is the definition of bilateral?

1 : affecting reciprocally two nations or parties a bilateral treaty a bilateral trade agreement. 2 : having two sides dealing with a bilateral problem.

What are the 4 types of symmetry?

The four main types of this symmetry are translation, rotation, reflection, and glide reflection.

What type of symmetry do humans have?

bilateral symmetryThe body plans of most animals, including humans, exhibit mirror symmetry, also called bilateral symmetry. They are symmetric about a plane running from head to tail (or toe).

What organism has bilateral symmetry?

Examples of animals that possess bilateral symmetry are: flatworms, common worms (“ribbon worms”), clams, snails, octopuses, crustaceans, insects, spiders, brachiopods, sea stars, sea urchins, and vertebrates. The symmetry of an animal generally fits its lifestyle.

What are the two types of body symmetry?

Types of symmetryRadial symmetry: The organism looks like a pie. This pie can be cut up into roughly identical pieces.Bilateral symmetry: There is an axis; on both sides of the axis the organism looks roughly the same.Spherical symmetry: If the organism is cut through its center, the resulting parts look the same.

What are the two main types of symmetry that a sponge has?

Most animals are bilaterally symmetrical with a line of symmetry dividing their body into left and right sides along with a “head” and “tail” in addition to a top and bottom. Only sponges (phylum Porifera) have asymmetrical body plans.