Difference between Hypogynous, Perigynous and Epigynous Flowers

What is the Difference between Hypogynous, Perigynous and Epigynous Flowers Hypogynous1. Ovary is superior2. Calyx, corolla and androecium occur below the ovary.3. Thalamus is flat, convex or conical.4. Thalamus is free from ovary wall.5. The whole gynoecium is visible from outside. Perigynous1. Ovary is superior2. Calyx, corolla and androecium occur from thalamus that surrounds the … Read more

What is the Difference Between Underground Stem and Root

Difference Between Underground Stem and Root   Underground Stem Root 1 Grows horizontally. Grows vertically down. 2 Swollen due to deposition of food. Not swollen. 3 Presence of nodes, internodes, scale leaves. Nodes, internodes, scale leaves are absent. 4 Axillary and terminal buds present. No such buds are produced. 5 Aerial shoots are produced from … Read more

Differences Between Prop and Stilt Roots

What is the Differences between Prop and Stilt Roots   Prop Roots Stilt Roots 1 These type of roots develop from horizonal branched stems. These type develop from basal part of the main stem or from nodes of some monocotyledonous plants. 2 These are long stout and pillar like structure that run vertically down and … Read more

What are the Characteristics of a Stem? – AtoZ Biology

CHARACTERISTICS OF THE STEM The stem is the ascending portion of the plumule. It is positively phototrophic. It has terminal bud which causes elongation of the stem. The stem is divided into nodes and internodes. When young, the stem is soft and green and therefore contributes towards photosynthesis. Stem bears leaves at the nodes. Stem … Read more

What is the function of the stem in a plant? – AtoZ Biology

What is the functions of the stem in a plant? Function of the stem: The main function of the stem is to bear branches and leaves and to give them proper exposure to sunlight. The leaves help the plants to absorb sunlight and carbon dioxide for manufacture of food. The stem also bears flowers for … Read more

Difference Between Self Pollination and Cross Pollination

Explain the Difference Between Self Pollination and Cross Pollination Pollination means transfer of pollen grains from anther of a flower to the stigma of the same or another flower of the same or allied species through various agencies. Types of PollinationThere are two types of pollination 1. Self-pollination or autogamy: Self-pollination is the transfer of … Read more

What is the main functions of leaf (leaves) on a tree?

FUNCTIONS OF LEAF (LEAVES) There are three main functions of leaf: 1. Manufacture of food: Leaves Contain chlorophyll. With the help of chlorophyll the leaves manufacture carbohydrate by a complex bio-chemical process called photosynthesis. 2. Interchange of gases: Leaves help in the interchange of oxygen and carbon dioxide for various physiological functions of the plants. … Read more

Difference Between Erythrocytes and Leucocytes (RBC vs WBC)

Erythrocytes or Red Blood Corpuscles (RBC):Erythrocytes are highly specialized cells. The mature human erythrocytes is a circular, biconcave, non nucleated disc. It contains homogeneous protoplasm. It is 7-8 μm in diameter, 2-2.5 μm thick at periphery and 1-2 μm thick at the centre. Under the microscope a single red blood cell seems to have a … Read more

What are the bacteria found in milk and milk products?

Types of bacteria found in milk and milk products are:The acid producing bacteria: These bacteria are responsible for conversion of lactose to lactic acid. Bacteria included in this group are: Streptococcus lactis, Streptococcus cremoris, Lactoba-cillus acidophilus, Lactobacillus bulgaricus. Aroma producing bacteria: These bacteria are responsible for the production of desirable aroma and flavor in milk … Read more

Cholera: Symptoms, Causes,Transmission & Control

What is Cholera? Cholera Symptoms Cholera Symptoms: Cholera is an acute infection of alimentary canal, characterized by sudden and heavy onset of watery diarrhoea, severe vomiting and cramps in legs. Great thirst, suppression of urine and severe dehydration follow and as a result of which the patient may collapse. Cholera Causes organism: In 1884, Robert … Read more