makes them better streamlined i would guess
Yes, birds are eukaryotic organisms. They have cells that contain a nucleus and other membrane-bound organelles. This distinguishes them from prokaryotic organisms, such as bacteria, which lack a defined nucleus.
Simply, without segmentation, organisms would lack means of movement, complex structure, advanced functions, and organ protection.
Yes, wombles have teeth. Their dental structure is similar to that of other rodents, with incisors that continuously grow throughout their lives. Teeth are essential for feeding on a diet of plant material, roots, and small insects, which are part of their natural diet.
Birds in general, including baby birds, do not smile because they lack the facial muscles necessary to form a smile expression. They use vocalizations, body language, and feathers to communicate and express emotions instead of facial expressions like smiling.
makes them better streamlined i would guess
The gizzard is a muscular organ found in birds that helps with mechanical digestion. It is tough and rough due to the thick muscular walls that grind and break down food particles. This muscular action helps birds to effectively digest their food since they lack teeth for chewing.
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.
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.
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.
teeth
wrybill, crossbills
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.