internal or external division

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Pheretima posthuma is a common species of earthworm found living in burrows made in moist soil. It is nocturnal in habit. It has an elongated, cylindrical body which is metamerically segmented. Anteriorly the first segment is called peristomium. It encloses a mouth. Overhanging the mouth is a flesh..

When current is drawn from a cell, ions move within the cell from one electrode to another. The resistance offered by the electrodes and electrolytes to these, measure the internal resistance of the cell.The internal resistance of a cell depends on the distance between the plate..

Respiratory system - Lungs are the respiratory organs. The passage way for air is formed by external nostrils, pharynx, larynx, trachea and bronchi. Lungs contain large number of minute alveoli in which external respiration takes place. Surrounding the lungs and the heart is a t..

Photosynthesis is influenced by two categories of factors - external or environmental and internal or plant factors. According to the law of limiting factors, put forward by F.F.Blackman in 1905, photosynthesis is limited by the most limiting facto..

Find the area of the shaded portion if each internal figure is obtained by joining the midpoints of the consecutive sides of the preceding external figure. [Given x = 16.5 units and y = 26.4 units.] => 65.34 square units or 16.33 square units or 42.67 square units or 32.67 squar..

Depending upon how your computer is configured and your preferences, you can have an external, internal or PC modem card. All three types work the same way, but each has its advantages and disadvantag..

There are five sense organs in humans - eyes, ears, nose, tongue and skin. Sensation is the conscious or unconscious awareness of external or internal stimuli. Sensing external environment is extroception. Example: Reading a page Sensing of bodys internal con..

There are five sense organs in humans - eyes, ears, nose, tongue and skin. Sensation is the conscious or unconscious awareness of external or internal stimuli. Sensing external environment is extroceptio..