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Questions in biology

[Answered] Which steps can we take to overcome pollution? Example: 1) Plant more trees 2) Avoid plastic 3) Do not burn waste 4) Use dustbins 5) Keep water sources clean 6) Use bicycle or walk for near distance 7) Reuse and recycle

[Answered] A student is preparing for a job interview. The night before the interview, the student is restless and anxious. He has sweaty palms and is experiencing unusual wakefulness. In this scenario, the student's physiological responses can be best attributed to the ______ nervous system. Multiple Choice: - central - somatic - parasympathetic - sympathetic

[Answered] What are the major sources of air pollution from marine transportation, and how do they affect human health and the environment?

[Answered] Name the following: 1. The flower used to make gulkand. 2. The spice obtained from crocus flowers. 3. An edible flower. 4. The flower used to make ointments.

[Answered] Which of the following is a product of photosynthesis? a. sugar b. carbon dioxide c. water d. light

[Answered] c. Mention two harmful effects of fungi? d. Explain the role of microorganisms in cleaning the environment?

[Answered] D. Answer each in a few words only. 1. Name two types of plants other than herbs, shrubs, and trees. 2. Name the process by which plants make food. 3. Which substance is used to remove chlorophyll from a green leaf during a photosynthesis experiment? 4. Mention any one characteristic of a shrub. 5. Why do some plants have tendrils? E. Give reasons. 1. Mint, tomato, and wheat are herbs. 2. Pumpkin is a creeper and grapevine is a climber. 3. Wheat and mango have different types of roots. F. Answer each in 5-6 sentences. 1. What is the function of the stem in a plant? 2. What is a leaf? 3. What is a root? State the various functions of roots.

[Answered] The brains of people who suffer from depression tend to have low levels of A. glutamate. B. serotonin. C. electrical activity. D. GABA.

[Answered] BOOKLET CODE: 354 49. 50. 51. 13 SUBJECT CODE: 06 The effect of increased climate change on agricultural productivity is associated with A. reduction of available water that leads to decrease in biological resources. B. drought that triggers wild fire, which can consume millions of acres of forest. C. agroforestry system that increases the mixture of multipurpose trees and crops. D. land use change and expansion of monoculture farming that yields high productivity. Which one of the following local community practices in Ethiopia is considered as an environmental action that addresses climate change mitigation? Culture of A. treating different diseases with herbal remedies by traditional healers B. planting millions of seedlings following the green legacy initiative C. negotiating mechanism that is led by elders to reduce social unrest D. respecting humanity that promotes eco-tourism industry This item is based on the following diagram of simple food chain. Leaves → Grasshoppers → Rodents → Leopards What will happen if the number of rodents significantly decrease? There will be A. an increase in the number of grasshoppers. B. no change in the number of leopard. C. fewer grasshoppers in the chain. D. an increase in the number of leopards. Which of the following is NOT a key process involved in carbon cycle? A. Decomposition B. Photosynthesis C. Cellular respiration D. Evaporation

[Answered] Why are there different types of carbon fixation?