Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
13 Cards in this Set
- Front
- Back
|
________ are animals that have radial symmetry.
|
echinoderms
|
|
|
What is radial symmetry?
|
Having the shape of a star or bicycle wheel.
|
|
|
All echinoderms live in ____ and move around on their __ ___.
|
water
tube feet |
|
|
____ ____ and __ ____ are echinoderms.
|
sea stars and sea urchins
|
|
|
Echinoderms that feed on whatever floats through the water, such as plankton, are called ____ ____.
|
filter feeders
|
|
|
Many echinoderms eat _____ or even other echinoderms.
|
mollusks
|
|
|
What mechanisms do echinoderms use as protection?
|
1)spines on their body, and
2)hiding themselves |
|
|
Flatworms have ______ symmetry.
|
bilateral symmetry
|
|
|
What does bilateral symmetry mean?
|
The worm can be divided at the middle and be the same on each side.
|
|
|
Flatworms are either ______ or _______-_____.
|
parasitic or free-living
|
|
|
______ live on or in other living organisms.
|
parasites
|
|
|
______ are living organisms that parasites live off of.
|
hosts
|
|
|
_____ are free-living flat worms that live in soil or fresh water.
|
planarians
|
