35437084 | biology | the study of life | |
35437085 | organization | the high degree of order within an organism's internal and external parts and in its interactions with the living world | |
35437086 | cell | in biology, the smallest unit that can perform all life processes; _______ are covered by a membrane and contain DNA and cytoplasm | |
35437087 | unicellular | describes an organism that consists of a single cell | |
35437088 | multicellular | describes a tissue, organ, or organism that is made of many cells | |
35437089 | organ | a collection of tissues that carry out a specialized function of the body | |
35437090 | tissue | a collection of specialized cells and cell products that perform a specific function | |
35437091 | organelle | one of the small bodies that are found in the cytoplasm of a cell and that are specialized to perform a specific function | |
35437092 | biological molecule | chemical compound that provides physical structure and brings about movement, energy use, and other cellular functions | |
35437093 | homeostasis | the steady-state physiological condition of the body | |
35437094 | metabolism | the sum of all chemical processes that occur in an organism | |
35437095 | cell division | the formation of two cells from one existing cell | |
35437096 | development | the gene-directed process by which an organism matures | |
35437097 | reproduction | the process of producing offspring | |
35437098 | gene | a short segment of DNA that contains the instructions for a single trait | |
35437099 | domain | in a modern taxonomic system, the broadest category; the category that contains kingdoms | |
35437100 | kingdom | in a tradtitional taxonomic system, the highest taxonomic category, which conatins a group of similar phyla | |
35437101 | ecology | the study of the interactions between organisms and the other living and nonliving components of their environment | |
35437102 | ecosystem | a community of organisms and their abiotic environment | |
35437103 | evolution | a heritable change in the characteristics within a population from one generation to the next; the development of new types of organisms from pre-existing types of organisms over time | |
35437104 | natural selection | the process by which individuals that are better adapted to their environment survive and reproduce more successfully than less well adapted individuals do; a theory to explain the mechanism of evolution | |
35437105 | adaptation | the process of becoming adapted to an environment; an | |
35437106 | scientific method | the series of steps followed to solve problems, including collecting data, formulating a hypothesis, testing the hypothesis, and stating conclusions | |
35437107 | observation | the process of obtaining information by using the senses; the information obtained by using the senses | |
35437108 | hypothesis | in science, an idea or explanation that is based on observations and that can be tested | |
35437109 | prediction | a statement made in advance that expresses the results that will be obatined from testing a hypothesis if the hypothesis is supported; the expected outcome if a hypothesis is accurate | |
35437110 | experiment | a procedure that is carried out under controlled conditions to discover, demonstrate, or test a fact, theory or general truth | |
35437111 | control group | in an experiment, a group that serves as a standard of comparison with another group to which the control gorup is identical except for one factor | |
35437112 | experimental group | in an experiment, a group that is identical to a control group except for one factor and that is compared with the control group | |
35437113 | independent variable | in an experiment, the factor that is deliberately manipulated | |
35437114 | theory | an explanation for some phenomenon that is based on observation, experimentation, and reasoning; that is supported by a large quantity of evidence; and that does not conflict with any existing experimental results or observations | |
35437115 | peer review- collaboration | the process in which experts in a given field examine the results and conclusions of a scientist's study before that study is accepted for publication |
Chapter 1 The Science of Life
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