Life's Organizational Hierarchy quiz #3 Flashcards
Life's Organizational Hierarchy quiz #3
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How are molecules formed in the context of biological organization?
Molecules are formed by the combination of two or more atoms joined together. Why are cells considered the smallest unit of life?
Cells are the smallest unit of life because they display all the characteristics of living organisms, unlike organelles, molecules, or atoms. What defines an organ in biological terms?
An organ is a group of different tissues working together to perform a specific function. How is a multicellular organism different from a unicellular organism?
A multicellular organism is composed of many cells organized into tissues, organs, and systems, while a unicellular organism consists of only one cell. How is a community different from a population?
A community includes multiple populations of different species living together in the same area, while a population includes only one species. What is the biosphere in the context of life's hierarchy?
The biosphere is the largest level, encompassing all ecosystems on Earth that support life. Give an example of an emergent property in biological organization.
Life is an emergent property that arises when organelles are combined to form a functioning cell. At which level of organization do nonliving and living components first interact?
Nonliving and living components first interact at the ecosystem level. How do organ systems contribute to the function of multicellular organisms?
Organ systems coordinate the activities of multiple organs to carry out major functions necessary for the organism's survival. Why are organelles not considered alive?
Organelles are not considered alive because they do not display all the characteristics of life on their own. What is the significance of understanding life's organizational hierarchy in biology?
Understanding life's organizational hierarchy helps explain how complex biological systems and interactions arise from simpler components. What is the main difference between biotic and abiotic components in an ecosystem?
Biotic components are living organisms, while abiotic components are nonliving elements like water, rocks, and air.
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