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History of the Galapagos Islands Facts & Charles Darwin History

The HMS Beagle stopped at the Galapagos Islands. These islands are present in the Western shore of South America. They are named after the large tortoises (Sp. galapago. tortoise) that inhabit there. Giant Tortoises of the Galapagos Islands The tortoises of Galapagos Islands weight up to 250 kg. They have shells up to 1.8 m in diameter. They live far ...

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The Voyage of the Beagle Charles Darwin

Voyage of the beagle is a book about journey of Charles Darwin written by himself. Charles Robert Darwin (1809—1882) was born on February 12, 1809. His father was a physician. Darwin collected dogs and hunting birds during his youth. These activities reduced his interest in school education. He entered medical school in Edinburgh, Scotland in 1825. There, he enjoyed the ...

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Effect of Light Colour on Rate of Photosynthesis Experiment

In this photosynthesis experiment, we are going to determine the effect of different light colors on the rate of photosynthesis. Photosynthesis is the phenomena in which solar energy is converted into useful bond energy. Different wavelengths (monochromatic light) have different effect on the photosynthesis. This experiment is performed to identify those changes. Apparatus/Chemicals for Photosynthesis Experiment Beaker, (Water Plant)fresh Hydrilla shoots, ...

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Determination of Amylase Activity in Germinating Seeds

In this experiment extraction of amylase from wheat seeds and the effect of amylase on the breakdown of the starch is observed. The effect of temperature is also observed on the activity of the enzyme. Apparatus/Chemicals Slightly grown wheat seeds, starch solution, I2-KI solution, watch glasses, mortar. Procedure Germinate about 30 grams of wheat until their roots are 0.5 cm ...

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Water Holding Capacity of Soil Experiment

Soil experiment is used to test the water holding capacity of soil. The Amount of water retained and stored in a soil after watering and subsequent drainage is important in plant growth and hydrological studies. This storage capacity of the soil is called its water holding capacity. That part of the stored water can be subsequently being removed by a ...

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Separation of Photosynthetic Pigments by Paper Chromatography Experiment

By using paper chromatography experiment we can determine more than one type of pigments are involved in the photosynthesis. Photosynthetic pigments carry out photosynthesis. Pigments (organic molecules) are separated by dissolving them in organic solvent and are separated by paper chromatography. In paper chromatography separation of the molecules is governed by the following points. Electrostatic forces of pigment molecules. Molecular ...

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Benedicts Test Procedure

Benedicts test procedure is used to detect the presence of sugars present in any chemical. That’s why Sugars can be divided into reducing and non-reducing. This division is on the basis of their ability to react with any reducing agent. Reducing Sugars: All those sugars, which have actually or potentially free aldehyde or ketonic group are known as. Non-Reducing Sugars: ...

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Factors Affecting Transpiration Experiment

Determination of the Effect of Environmental Factors on the Rate of Transpiration of a Leaf Shoot by Means of a Potometer. Objective To demonstrate that different environmental factors has different effects on the rate of transpiration. Transpiration is the loss of water in the form of water vapors from the surface of the plant. It can be, Stomatal Transpiration: When ...

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Diversity of Mammalia

Diversity of Mammals

Current vertebrates have following attributes: 1. They have hair on the body. 2. They have mammary organs. 3. They have specific teeth. They have heterodont dentition 4. Three center auto ossicics are available. 5. Stomach is available in them. 6. Their skin has sweat, sebaceous. fragrance organs. 7. Theirheart is four-chambered. 8. They have extensive cerebral cortex. The zoologists differ ...

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characteristics, types and functions Permanent tissue

parenchyma tissue Structure

characteristics, types and functions Permanent tissue Attributes of lasting tissue:    Changeless tissues are subsidiaries of meristematic tissue They are develop tissue and the cell have lost the limit of cell division.   Sorts of changeless tissue    Straightforward lasting tissue Complex changeless tissue Secretory tissue 1. Straightforward lasting tissue    Straightforward lasting tissue is made out of single kind ...

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