Bio 3, Chapter 1 Practice Questions – Flashcards
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What is biology?
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the scientific study of life
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What are the two main processes that ecosystems depend upon?
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nutrient recycling and energy flow
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Which of the following is not recycled but is lost from ecosystems?
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energy
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Which of the following structures can perform all the activities required for life?
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cells
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Relative to prokaryotic cells, eukaryotic cells are usually
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larger and more complex
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Humans are composed of ______ cells.
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eukaryotic
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What name is given to the functional compartments of a cell?
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organelles
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What are eukaryotic genes composed of?
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DNA
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What is a gene?
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a unit of inheritance
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Taxonomy is the ______.
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naming and classifying of species
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The branch of biology that explains both the diversity and the unity of life is ______.
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evolution
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Which of these is required for natural selection to occur?
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individual variation, inheritance, unequal reproductive success
