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Stack #4700820
| Question | Answer |
|---|---|
| tissue | a group of similar cells that perform a common function |
| organ | combination of two or more different tissues performing a common function |
| organ system | a group of related organs working together |
| organisms | individual living things |
| population | level of biological organization that includes groups of organisms in the same species occupying a certain area |
| species | level of biological organization that includes all of the similarly constructed organisms |
| community | assemblage of populations interacting with one another within the same environment |
| ecosystem | biological community together with the associated abiotic environment; characterized by energy flow and chemical cycling |
| biosphere | zone of air, land water at the surface of the earth in which living organisms are found |
| atoms | smallest particle of an element that displays the property of the element |
| molecule | union of two or more atoms of the same element; also, the smallest part of a compound that retains the properties of a compound |
| cell | the smallest structural and functional unit of an organism |
| energy | the capacity to do work. can exist in many forms such as potential and kinetic |
| metabolism | the breakdown of food |
| photosynthesis | process by which plants, algae, and some bacteria harvest the energy of the sun and convert it into chemical energy |
| homeostasis | maintenance of normal internal conditions in a cell r an organism by means of self regulating mechanisms |
| reproduce | to produce a new individual of the same type |
| growth | increase in number of cells and or size of cells |
| development | group of stages by which a zygote becomes an organism or by which an organism changes during its life span; puberty or aging |
| DNA | nucleic acid polymer produced from covalent bonding of nucleotide monomers |
| genes | unit of hereditary existing as alleles on the chromosomes, in diploid organisms typically two alleles are inherited, one from each parent |
| mutations | alteration in chromosome structure or number and also an alteration in a gene due to a change in DNA composition |
| natural selection | mechanism of evolutionary change resulting in adaptation to the environment |
| adaptation | organisms modification in structures functions or behavior suitable to the environment |