B - S1 - 2024 - bio intro & basics, col, systems & hierarchy

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What is natural selection?

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Natural selection is a mechanism for evolution where organisms better adapted to their environment tend to survive and produce more offspring.

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What are the three main components of cell theory?

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1. The basic unit of life is the cell. 2. All living organisms are composed of cells. 3. Cells come from preexisting cells.

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What are the two most important chemical reactions in biology?

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Photosynthesis and cellular respiration.

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What is metabolism?

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Metabolism is the sum of all the chemical reactions that occur in an organism.

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What is homeostasis?

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Homeostasis is the process by which living organisms maintain a stable internal environment despite changes in external conditions.

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What is the difference between artificial selection and natural selection?

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Artificial selection is the process by which humans breed plants and animals for specific traits, while natural selection is the process by which organisms better adapted to their environment survive and reproduce.

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What is hybridization in biology?

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Hybridization is the process of crossing two different species or varieties to produce a hybrid.

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What is the role of membrane-bound organelles in a cell?

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Membrane-bound organelles perform specific functions within the cell, such as energy production (mitochondria) and protein synthesis (ribosomes).

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What is the scientific method?

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The scientific method is a systematic process for investigating phenomena, acquiring new knowledge, or correcting and integrating previous knowledge.

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What is the significance of photosynthesis?

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Photosynthesis is crucial because it converts solar energy into chemical energy, providing food for plants and oxygen for other organisms.