it's for homework please HHHHHHHHHHHHHHHHHHHHHHHHHHEEEEEEEEEEEEEEEEEELLLLLLLLLLLLLLLLLLLLLLLLLLPPPPPPPPPPPPPPPPPPPPPP.........................................please
2007-02-21 01:30:11 · 3 answers · asked by hannah 1 in Health ➔ Dental
I didn't find any "size" in measurement of the teeth and it could be that their dentition is so unique that the size is constantly changing due to their continued eruption and constant abrasion process of the teeth. Here is the best I found and one site said something about teeth comparison of elephants, I don't know, but it looks like your teacher ask an impossible question so you would do a lot of reading looking for the answer. I'll bet you know more about the Manatees than the average person does right now. Check this out and see if it helps you any.
Teeth
The teeth or "dentation" of manatees is very unique. They have just one kind of teeth-- hind molars. And they have what's called "hind molar progression". also know as "marching molars". This means that their teeth are constantly moving forward. When the teeth get to front of the row on both top and bottom, they wear down from just the chewing--of whatever vegetation they're chewing--and the roots are resorbed so what they end up with is just a plate. Then by the time they get to the front of the row the plate falls out and the next tooth is moved forward. So it's a constant resorption and moving of the roots up the jaw with new teeth being emerged from the back. And it's an indeterminant number of teeth.
Watch
Ranger Betsy Dearth discuss manatee teeth
Manatee Jaw with
"Marching Molars" Manatee Skull
How many teeth do they have? At any one time, it can be about seven per quadrant. Usually calves have four teeth per quadrant, and as they get larger they may have seven in each quadrant. But over a lifetime,the number changes, because that rate of movement is different depending on their diet, and how much sand is in the area where they're feeding, and how coarse the vegetation is if they're feeding on coarse grasses you know their teeth are going to migrate more quickly than they would if they're just feeding on soft freshwater vegetation most of the time.
In comparison to other mammals' teeth, Manatee teeth are very unique. Rather than having one tooth fall out and then be replaced in the same spot with another (vertically), Manatee teeth are just continually replaced horizontally (marching molars). Tooth replacement continues throughout their life.
do a search under "manatees teeth size"
2007-02-21 02:24:56 · answer #1 · answered by HeatherS 6 · 0⤊ 0⤋
look it up on the web
2007-02-21 09:32:50 · answer #2 · answered by Anonymous · 1⤊ 1⤋
okay...
what kind of project is this?!
kindergrden?
2007-02-22 13:46:23 · answer #3 · answered by Anonymous · 1⤊ 1⤋