Biological World

Ethnobotany Ethnobotany is the scientific study of the relationships that exist between peoples and plants. More precisely, it is the study of the direct interaction between people and plants . Ethnobotany is a human science that investigates the complex relationships that exist between plants and people, including the use of plants for food, shelter, medicine, clothing, hunting, and religious ceremonies. Ethnobotany is the study of how people of a particular culture and region make use of indigenous plants. The word “ethnobotany” is derived from the Greek word “ethnos” meaning people, and “botany” meaning the study of plants. Ethnobotanists explore traditional knowledge and use of plants by people. Among other issues, ethnobotanists analyze the impact of local people on their environment. Role in Ecosystem Management The traditional use of plant species for purposes other than food, forage, or medicine also affects landscapes. These practices play an important role in managing hunting...

Practice Set 001 WBSSC 2025 1. In an experiment, a plant was kept in the dark and supplied with water containing radioactive oxygen (H ₂ ¹ ⁸ O). During photosynthesis, the radioactive oxygen will be released in – a) Glucose        b) CO ₂ c) O ₂ d) ATP   2. If a person’s pancreas is surgically removed, which of the following will be most affected? a) Digestion of proteins only b) Regulation of blood sugar level only c) Both digestion of food and regulation of blood sugar d) Absorption of food in intestine   3. A homozygous tall pea plant (TT) is crossed with a dwarf plant (tt). In F ₂ generation, what will be the ratio of tall to dwarf? a) 3:1 b) 1:1 c) 2:1 d) 4:0   4. If the mitochondria of a cell are destroyed, the cell will not be able to – a) Synthesize proteins b) Produce ATP c) Carry out transcription d) Store genetic information   5. The oxygen carrying capacity of blood decrea...