both upper and lower jaws in a sentence
1. At hatching, a typical salamander larva has eyes without lids, teeth in both upper and lower jaws, three pairs of feathery external gills, a somewhat laterally flattened body and a long tail with dorsal and ventral fins.
2. other mammals, like Plesiadapiformes and diprotodontian marsupials, also have similar premolars in both upper and lower jaws, but in multituberculates this tooth is massive and the upper premolars aren't modified this way.
3. The incisors occupy the front of the tooth row in both upper and lower jaws.
4. The mouth is wide, with both upper and lower jaws having of many small teeth.
5. It would have used its sharp ceratopsian beak to bite off the branches which were then shredded - leaves, needles and all - by the tooth batteries, providing a self-sharpening continuous cutting edge in both upper and lower jaws.
6. They are best known for the large, canine-like tusks (often called caniniforms) in both upper and lower jaws.
7. Both upper and lower jaws sport a pronounced beak, formed from the rostral and predentary bones, respectively.
8. unlike primitive ornithomimosaurs, both upper and lower jaws were toothless, a trait that is often reported in more derived ornithomimids.
9. It was a small herbivore, about 2 meters (6.5 feet) in length, and like all ornithischians, it had a beak-like structure on the ends of both upper and lower jaws to help it crop plant material.
10. More typically for nodosaurids, leaf-shaped teeth lined both upper and lower jaws, used for cutting plant material.
11. The front end of the skull is unknown, but there would have been a sharp bony ridge (tomium) at the end of both upper and lower jaws, as seen in other ankylosaurs.
12. The biarmosuchian skull is very similar to the sphenacodontid skull, differing only in the larger temporal fenestra (although these are still small relative to later therapsids), slightly backward-sloping occiput (the reverse of the pelycosaur condition), reduced number of teeth, and single large canine teeth in both upper and lower jaws, and other features (Carroll 1988 pp. 370, Benton 2000 p. 114).
13. It also had more teeth in both upper and lower jaws than most abelisaurids.
14. The mouth is large and protractile, and both upper and lower jaws have tiny teeth for eating fishes, worms, crustaceans, and other small aquatic animals at night.
15. The mouth is of moderate size in comparison with the body, and contains six curved, peg like incisors in the front of both upper and lower jaws.
16. For the most part, Aetiocetus retains a primitive tooth count of 11 upper teeth and 11 lower teeth, abbreviated 11/11. This is interpreted to be the basic mammalian dental formula with 3 incisors, 1 canine, 4 premolars, and 3 molars on both upper and lower jaws.
17. Both upper and lower jaws have a band of teeth present and the breast is naked ventrally to completely scaled.
18. The teeth are quite sharp and well developed on both upper and lower jaws.
19. Aquatic larvae have true teeth on both upper and lower jaws, and external gills.
20. There are no teeth in both upper and lower jaws making it a herbivorous species.
21. Its canines are prominent and it has several rows of molars in both upper and lower jaws.
22. Both upper and lower jaws are toothless.
- three pairs
- feathery external gills
- a somewhat laterally flattened body
- a long tail
- The forelimbs
- pond-living species
- Pond-type larvae
- , rod-like structures
- Some members
- the genera Ambystoma
- the adult form
- The northwestern salamander
- Ambystoma gracile
- the larval state
- an adult
- the animal's growth rate
- adverse conditions
- low water temperatures
- the response
- the tissues
- the hormone thyroxine
- trace elements
- Ambystoma tigrinum
- The adult tiger salamander
- the larva
- larval breeding
- fifteen species
- obligate neotenic salamanders
- facultative ones
- appropriate environmental circumstances
- Lungless salamanders
- a small number
- unpigmented eggs
- damp leaf litter
- Each egg
- a large yolk sac
- The female salamander
- the genus Ensatinas
- her throat area
- a mucous secretion