not QUITE sure... but maybe because the earthworms have rings around their bodies which makes them stronger. sorry if that is not what you wanted to know!
Earthworms are in the Phyllum Annelida, the segmented worms. The earthworm body looks like a long string of checkers, arranged flat-side to flat-side. The roundworns, Nemahelminthes, are not segmented and are shaped like a knitting needle.
Meal worms are much smaller and are a brown-orange color. They are much harder and have 6 small legs towards the front of their body. Earthworms are much larger and are a pink fleshy color. They are much softer and do not have legs.
earthworms fall into the category of "invertebrates.
In flat slab you save time formwork of beams.
A lanscape with no contours A Flat landscape has no hills, valleys or dips, Yep, just flat terrain, such as a lawn or a backyard.
Blood fluke is a flat worm, roundworms are round and segmented.
No. Like a flatworm it has no backbone, but it is round and not flat.
worm is in their name and have similar digestive systems and have the same way of seeing and feeling.
Invertebrates.No, flat worms are not vertebrates.
Earthworms are in the Phyllum Annelida, the segmented worms. The earthworm body looks like a long string of checkers, arranged flat-side to flat-side. The roundworns, Nemahelminthes, are not segmented and are shaped like a knitting needle.
Obviously every creature needs a circulatory system. Just cuz its flat doesn't mean it doesn't have any circles in it. DuH.
The flat worm must live in water, while the earthworm lives in and around the earth. The planarian detects light. The planarian can be split in two, separating left and right (and live). The earthworm can be split front and back (and live). The reverse is not true. Etc.
Tape worms are not round worms. A tape worm is a flat worm. Both are intestinal parasites and feed off the nutrients that are provided by the host. A tapeworm is segmented and the segments break off and look like little grains of rice. A round worm is long and round. In large quantities they resemble spaghetti.
You can cure the round worm infection with single dose of albendazole. To treat the flat worm infection (infestation) in rather difficult. You have to give purgatives. Improper treatment can lead to migration of the flat worms into your body tissue.
Not flat unless your advanced but for beginners up a ramp is possible
Surface tension.
using circular muscles or use longitudinal muscles to squeeze itself flat