since a bird has no teeth to chew its food it's stomach has a special section called a gizzard which grinds the food to make the food easier to absorb in the instine
makes them better streamlined i would guess
We yawn cause of the lack of oxygen.
Teeth are a good recorder of an organisms diet. They can show an abuse of acids or a lack of self cleansing foods such as raw vegetables and nuts. The calcium will be depleted in the absence of dairy products.
Most definitely. Probably much like the set on a raccoon (procyon lotor), which I consider to be their closest cousins, along with pandas. Despite popular belief, Wombles are not rodents - you don't see gnaw marks on their furniture in their burrow or on the trees on Wimbledon Common. They also lack the long tail of a rodents like mice or rats. As for proof that they have teeth? In the episode titled "The Invisible Womble" Great Uncle Bulgaria makes mention of bramble pudding noting that "the pips get stuck between your teeth".
Simply, without segmentation, organisms would lack means of movement, complex structure, advanced functions, and organ protection.
makes them better streamlined i would guess
What organ systems do echinodermes lacking
aplasia
Deer do not have a gallbladder. Scientists have still not been able to establish why they lack this organ that's responsible for producing bile that aids in digestion.
If your teeth keep chipping off, it could be a lack of calcium in your diet. Other possible reasons could be decay or lack of other nutrients in the body.
Healthy teeth should NOT be brittle. Instead, they should have healthy enamel. A thick enamel makes teeth strong and bright white. Teeth without enough enamel look off-white or gray, and can become brittle. This lack of enough enamel can lead to tooth weakness, cracking, and breakage.
teeth
wrybill, crossbills
Actually birds don't have urinary bladder.
Aplasia is the absence of the organ with only the rudiment present Agenesis is the complete lack of the organ
It is the nucleus .Prokariyotes lack a nucleus.
lack of calcium in your body causes white stripes on teeth and nails.