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Questions and Answers
Which characteristic of life describes the ability of living organisms to adjust to environmental changes?
Which characteristic of life describes the ability of living organisms to adjust to environmental changes?
What is the primary purpose of homeostasis in living organisms?
What is the primary purpose of homeostasis in living organisms?
Which process is responsible for converting sunlight into chemical energy in plants?
Which process is responsible for converting sunlight into chemical energy in plants?
Which of the following is NOT a skin receptor mentioned in the content?
Which of the following is NOT a skin receptor mentioned in the content?
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Which substance is known as the energy currency of cells?
Which substance is known as the energy currency of cells?
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Study Notes
Characteristics of Life
- Living things exhibit a complex and organized structure, indicating advanced biological organization.
- Responsiveness to stimuli is a fundamental trait of living organisms, allowing them to react to environmental changes.
- Skin contains specialized receptors:
- Pacinian Corpuscle detects deep pressure.
- Meissner’s Corpuscle senses touch.
- Ruffini’s End Organ responds to heat.
- Krause’s Bulb recognizes cold.
- Bare Nerve Endings are sensitive to pain.
- Skin contains specialized receptors:
Homeostasis
- Homeostasis refers to the ability of living organisms to maintain a stable internal environment despite external changes.
- Examples of homeostatic processes include the regulation of body temperature and blood sugar levels.
Metabolism
- Living organisms acquire materials and energy from their surroundings, converting them into usable forms through metabolism.
- Photosynthesis demonstrates this process:
- Equation: 6CO2 + 6H2O + light energy → C6H12O6 + 6O2.
- Organisms utilize ATP (adenosine triphosphate) as an energy currency for biological processes.
- Photosynthesis demonstrates this process:
- Decomposers, also known as detritivores, play a crucial role in the ecosystem by breaking down dead organic material and recycling nutrients.
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Description
Explore the essential characteristics that define living organisms, including their complex structures, responsiveness to stimuli, and metabolism. Understand the concept of homeostasis and how living beings regulate their internal environments. This quiz will test your knowledge on these fundamental biological principles.
