Yes they are.
Symmetrical organization means when you can draw a line down the middle of the organism and the two sides look like mirror images. If you draw If you draw
a line down the middle of an octopus you would find two sides with equal parts.
Sponges and some coral are not symmetrical tho.
the different types of invertebrates areMOLLUSCAENCHINODERMATACRUSTACEANA:)
The three types of symmetry are reflectional symmetry (mirror symmetry), rotational symmetry (turn-around symmetry), and translational symmetry (slide symmetry).
This is called bilateral symmetry. Bilateral symmetry means an organism has symmetry across one plane (known as the sagittal plane, and directly down the centre of their body), which means one side of their body approximately mirrors the other side. This is seen in all vertebrates, and many invertebrates such as arthropods.
Bilateral, meaning left and right are equal.
line symmetry, rotational symmetry, mirror symmetry &liner symmetry
Many invertebrates such as insects, arachnids and other arthropods have bilateral symmetry. This means they have symmetry across one plane (known as the sagittal plane, and directly down the centre of their body), which means one side of their body approximately mirrors the other side. However, some invertebrates such as jellyfish have radial symmetry. Animals with radial body symmetry display a regular arrangement of body parts around a central axis, usually in a circular pattern.
The different types of symmetry in geometry are symmetrical and asymmetrical.
symmetry in rectangle?
It's actually MOLLUSKS.
Nervous system
They have bilateral symmetry and are invertebrates.
Sea urchins!