S.N Characters Dicot plants Monocot plants 1. Cotyledon Two One 2. Flower Usually penta-merous Usually tri-merous 3. Nodes and internodes Distinct nodes and internodes are absent. Distinct nodes and internodes are … Read more
Phase Culex Anopheles Eggs 1. vertically laid in clusters on the surface of water. 1. laid singly and horizontally on the surface of water. 2. cigar shaped. 2. boat shaped (spindle shaped). 3. not provided with lateral air floats. 3. two lateral air floats are present. 4. laid … Read more
S.N Photosynthesis Respiration 1. An anabolic process. A catabolic process. 2. Complex organic food is synthesized from simple inorganic food. Complex organic foods are oxidized into simple inorganic forms. 3. Carbon dioxide is absorbed. Carbon dioxide is evolved. 4. Oxygen is evolved. Oxygen is absorbed. 5. It occurs in presence of light. It occurs … Read more
S.N Hormones Enzymes 1. These are secreted by endocrine glands. These are secreted by exocrine glands. 2. They are poured directly into the blood stream. They are released through the … Read more
S.N Gram positive bacteria Gram negative bacteria 1 They retain the crystal violet stain during gram staining. They do not retain the crystal violet stain during gram staining. 2 Cell wall is simple. Cell wall is complex. 3 They appear blue/purple. They appear pink/red. 4 The thickness of wall is 20-80 nm. Thickness of wall … Read more
Bacteria 1. very small in size. Virus 1. smaller than bacteria 2. can be seen under compound microscope. 2. can be seen only under an electron microscope. 3. shows metabolic activities. 3. do not show metabolic activities. 4. … Read more
S.N Arteries Veins 1. Carry blood away from the heart. Bring blood towards the heart 2. Wall is thick and strong. Wall is thin and weak. 3. Located deep in the body away from the skin except wrist, neck, etc. Located close to the skin i.e. superficially. 4. Narrow lumen. Wide lumen. 5. Internal valves … Read more