Inhoudsopgave
Welke dieren zijn radiaal symmetrisch?
Radiaal symmetrisch Radiale symmetrie is vooral geschikt voor sessiele dieren zoals de zeeanemoon, drijvende dieren zoals kwallen en langzaam bewegende organismen zoals zeesterren.
Welke dieren zijn veelzijdig symmetrisch?
Holtedieren: veelzijdig symmetrisch, geen skelet, voorbeeld; kwal. Wormen: tweezijdig symmetrisch, geen skelet, voorbeeld; regenworm. Weekdieren: tweezijdig symmetrisch, uitwendig skelet (huisje of schelp), voorbeeld slak. Geleedpotigen: tweezijdig symmetrisch, uitwendig skelet (pantser), voorbeeld krab.
Wat is de antoniem van symmetrisch?
in de lijst met antoniemen (woorden met een tegengestelde betekenis): symmetrisch ≠ asymmetrisch.
What is the meaning of pentaradial symmetry?
Definition of Pentaradial Symmetry. Think about your own body; you have the same number of arms, legs, and other features on each side, with the exception of a few scars or freckles.
Do sea cucumbers have pentaradial symmetry?
Sea cucumbers may not appear to have pentaradial symmetry at first glance. They look like worms! But these echinoderms have the same five-fold symmetry at their tentacles and along their internal calcium carbonate skeleton. A worm-like sea cucumber.
Do sea urchins have pentaradial symmetry?
Sea urchins and sand dollars have a skeleton called a ’test’ that is made of calcium carbonate. Sea cucumbers look almost worm-like, but they still exhibit pentaradial symmetry. Sea stars, or starfish, have the familiar five-fold arms exhibiting a typical example of pentaradial symmetry.
What is bilateral and radial symmetry in animals?
This is called bilateral symmetry, with the prefix bi- meaning ’two’ and lateral meaning ‘sides’. One way to differentiate different groups of animals is by their body symmetry. Radial symmetry is another type of animal symmetry, where parts of an animal branch out from a central point, with each part matching the other.