Nitrogenous waste of the body are excreted by organisms of different species differently. Others, such as the mammals excrete it in a form of urea while other in a form of ammonia. Still others, excretes it in a form of uric acid. The latter group of organisms being referred to are the BIRDS and REPTILES.
This organisms found to excrete the nitrogen as urea are called as uricothelic organisms and excrete white powder or paste. The process of conversion of ammonia to uric acid needs a lot of energy or energy intensive, however; it is less toxic and reduces need for water.
The answer is atrial depolarization. The P wave of a normal electrocardiogram specifies atrial depolarization. In addition, depolarization happens in the four compartments of the heart which is both atria first and in both ventricles. The sinoatrial or as called as SA node on the wall of the right atrium starts depolarization in the right and left atria that can cause the contraction in which it is symbolized by the P wave on an electrocardiogram.
The correct statement is D. APICAL MERISTEMS ARE SOMETIMES CHANGED INTO FLORAL MERISTEMS.
Apical Meristems are found in the tips of the roots and in the buds of the shoots. They supply cells for the plants to grow in length.
Apical Meristems are found in herbaceous plants, woody plants, grasses, and flowering plants.
In flowering plants, shoot apical meristem develops into an inflorescence meristem which produces the floral meristem. The floral meristem is responsible for the production of the sepals, petals, stamens, and carpels of the flower.
plants and algae. These organisms are called primary consumers or herbivores. Some examples are rabbits, deer, tadpoles, and caterpillars. organisms are called secondary consumers.
