Botany

Angelica glauca: Introduction, Scientific Classification, Origin, Discovery, Description, Phytochemistry and Uses

Angelica glauca, commonly known as Himalayan angelica or Chora, is a perennial herbaceous plant that belongs to the family Apiaceae. It is native to the Himalayan regions of Asia and is known for its medicinal and aromatic properties. Angelica glauca has a rich history of traditional uses and has also been the subject of scientific investigation due to its potential therapeutic benefits.

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Ajuga bracteosa (Ratti Buti/ Jan-e-Adam): Introduction, Scientific Classification, Geographic distribution, Morphological description, Active ingredients and Uses

Ajuga bracteosa is indigenous to the high-altitude regions of the Himalayas, primarily found in India, Pakistan, and Nepal. It thrives in alpine meadows, rocky slopes, and forest clearings at elevations ranging from 2,500 to 4,500 meters above sea level. The plant’s adaptation to harsh environmental conditions has contributed to its resilience and survival in these regions.

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Aconitum chasmanthum: Introduction, Scientific Classification, Origin, Discovery, Description, Phytochemistry and Uses

As a poison
The roots of A. ferox supply the Nepalese poison called bikh, bish, or nabee. It contains large quantities of the alkaloid pseudaconitine, which is a deadly poison. The root of A. luridum, of the Himalaya, is said to be as poisonous as that of A. ferox or A. napellus.
Several species of Aconitum have been used as arrow poisons. Aconitum poisons were used by the Aleuts of Alaska’s Aleutian Islands for hunting whales. Usually, one man in a kayak armed with a poison-tipped lance would hunt the whale, paralyzing it with the poison and causing it to drown. Aconitum tipped arrows are also described in the Rig Veda.

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GENETICS AND HEREDITY: Objective/Multiple Choice Type Questions Class 10th CHAPTER 14 JKBOSE/NCERT

Question . A cross between a tall plant (TT) and a short plant (tt) resulted in progeny that was all tall plants as
(a) Tallness is the dominant trait. (b) Shortness is the dominant trait. (c) Tallness is a recessive trait. (d) The height of the plant is not governed by the gene T or t.
Ans: (a) Tallness is the dominant trait.

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Ricinus communis: Scientific classification, Origin, Discovery, Description and Uses

The castor bean or castor oil plant, Ricinus communis, is a species of perennial flowering plant in the Euphorbiaceae (spurge) family. Ricinus communis, also known as the “palm of Christ,” is a member of the Euphorbiaceae family and is also known by the names Jada (Oriya), Verenda (Bengali), Endi (Hindi), Errandi (Marathi), and Diveli (Gujarati).

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Zoology: Solved Previous Year Question Paper for NCERT/ CBSE Class 12th Zoology Paper code (RKDO18 20304-X) 

Color blindness, also known as color vision deficiency, is the inability to distinguish certain colors in the visible light spectrum. It affects around 8% of men and 0.5% of women, with the most common type being red-green color blindness.
Color blindness can be caused by genetic factors or acquired through injury or disease.
Symptoms include difficulty distinguishing between colors, difficulty identifying colors, and difficulty seeing color in low light or bright light.
Treatment for color blindness is not available, but people with the disorder can often find ways to adapt, such as using color-coded objects or specialized lenses.

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Zoology: Solved Previous Year Question Paper for NCERT/ CBSE Class 12th Zoology Paper code (SEIIRKON17-15321-A) 

Dairy farming is the practice of raising dairy animals for the production of milk and other dairy products, such as cheese, butter, and yogurt. Dairy farming involves a variety of activities, such as breeding, feeding, and milking the animals, as well as caring for them and managing the overall operation of the farm. It also includes processing, packaging, and marketing of the dairy products.

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Zoology: Solved Previous Year Question Paper for NCERT/ CBSE Class 12th Zoology

Question: Define Immunity. Name its types.
Answer: Immunity is the ability of the body to protect itself from foreign substances, organisms, or toxins.
The three types of immunity are innate immunity, adaptive immunity, and passive immunity.

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