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Living Things

iLearn Biology

QuestionAnswer
Biological growth Increase in size and/or number of cells of an organism.
Development Include changes that take place during an organism's life.
Metabolism The sum of all chemical activities of the organism.
Homeostasis Regulates continual metabolic processes to balance the internal environment.
Stimuli Physical or chemical changes in the internal and external environment.
Cilia Tiny hairlike extensions of the cell.
Flagella Longer structures of the cell.
Sessile Remain firmly attached to a surface.
Asexual reproduction Without the fusion of the egg and sperm to form a fertilized egg. Product of a single parent.
Sexual reproduction Carried out by the fusion of the egg and sperm to form fertilized egg. Product of two parents.
Adaptations Characteristics that enhance an organism's ability to survive in a particular environment.
Cells The basic unit of life.
Cell Theory A fundamental unifying concept of biology.
Plasma membrane A protective envelope that separates the cell's internal environment from the surrounding external environment.
Organelles Internal structures that are specialized to perform specific functions.
DNA Specialized molecules that contain genetic instructions.
Prokaryotic cells Cells without a nucleus.
Eukaryotic cells Cells with a nucleus.
Nucleus An organelle inside a eukaryotic cell that contains the DNA.
Created by: pacetej
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