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Questions and Answers
Which scientific discipline focuses on the processes or functions of living things?
Which scientific discipline focuses on the processes or functions of living things?
- Physiology (correct)
- Anatomy
- Histology
- Biochemistry
What is the basic living unit of all plants and animals?
What is the basic living unit of all plants and animals?
- Cell (correct)
- Atom
- Tissue
- Organ
Which characteristic of life refers to an organism's ability to sense changes in the environment?
Which characteristic of life refers to an organism's ability to sense changes in the environment?
- Reproduction
- Organization
- Responsiveness (correct)
- Metabolism
What type of feedback mechanism is characterized by a deviation from a normal value that leads to an amplification of the response?
What type of feedback mechanism is characterized by a deviation from a normal value that leads to an amplification of the response?
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Which level of structural and functional organization involves groups of similar cells and the materials surrounding them?
Which level of structural and functional organization involves groups of similar cells and the materials surrounding them?
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Study Notes
Anatomy
- Investigates the structure of the body.
- Involves dissection to study body parts.
Physiology
- Focuses on the functions and processes of living organisms.
- Aims to understand and predict responses to stimuli.
- Examines how the body maintains homeostasis despite environmental changes.
Structural and Functional Organization
- Chemical Level: Involves interactions among atoms forming molecules.
- Cell Level: Basic living units in all organisms.
- Tissue Level: Comprises similar cells and surrounding materials.
- Organ Level: Made of two or more tissue types performing specific functions.
Characteristics of Life
- Organization: Parts of an organism have defined relationships, leading to specific functions.
- Metabolism: The capacity to use energy for essential functions such as growth, movement, and reproduction; encompasses all processes synthesizing energy.
- Responsiveness: Ability to detect environmental changes and adjust accordingly to sustain life.
Positive Feedback Mechanism
- Not involved in maintaining homeostasis.
- Indicates that when normal values deviate, the response amplifies the change rather than counteracting it.
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