Answer: premaxilla bone (or maxilla) and the maxillary beak (or rhinotheca).
Explanation:
The beak is composed of keratin, the same tough, insoluble protein found in fingernails, hoofs, antlers and horns. A bird's bill comprises two parts. The upper portion of a bird's bill is called the maxillary rostrum, which consists of the premaxilla bone (or maxilla) and the maxillary beak (or rhinotheca).
The eyes detect changes in posture and inform the brain about the position of the body, so vision is very important for maintaining balance, in the optic disc nerve fibers leave the eye.
Answer:
The sequence is b, a, d, c.
Explanation:
Pulmonary ventilation may be defined as be defined as the simple process of intake of oxygen and exhale of carbon dioxide known as breathing. Diaphragm contracts during inspiration and relax during exhalation.
The pulomonary ventilation occurs when the skeletal muscle contraction occur by the stimulation from the brainstem nuclei. This leads to the changes in the volume of the thoracic cavity. The thorax changes its shape by contraction and relaxation, this leads to the pressure change. Then air flows down the pressure gradient.
Thus, the correct sequence is b, a, d, c.
The vesicle is a type of skin eruption. Vesicles are cell organelles that are made out of a lipid bilayer. You can consider vesicles cell envelopes that are utilized to transport materials starting with one place then onto the next. Vesicles likewise work in digestion and catalyst stockpiling also. This graph demonstrates the general structure of a straightforward vesicle.
The answer is the letter C i think
