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Organization L5
Levels of Organization vocab from lessons 1-4
| Term | Definition |
|---|---|
| Atom | the basic unit of matter |
| Molecule | smallest unit of most compounds that displays all the properties of that compound |
| Organelle | specialized structure that performs important cellular functions within a cell |
| Cell | basic unit of all forms of life |
| Tissue | group of similar cells that perform a particular function |
| Organ | group of tissues that work together to perform closely related functions |
| Organ System | group of organs that work together to perform closely related functions |
| Organism | groups of organ systems that work together to perform closely related functions and maintain homeostasis. Living things! |
| Population | group of individuals in the same species that live in the same area |
| Community | assemblage of different populations that live together in a defined area |
| Ecosystem | all the organisms that live in a place, together with their nonliving environment |
| Biosphere | part of Earth in which life exists including land, water, and air or atmosphere |
| biomolecules | molecules made by living systems |
| carbohydrates | a biomolecule made entirely of carbon, hydrogen, and oxygen with a 2:1 ratio of hydrogen to oxygen |
| lipids | diverse, hydrophobic biomolecules containing carbon, hydrogen, and oxygen |
| nervous tissue | reacts to stimuli and transmits signals throughout the body |
| muscular tissue | specialized to contract and allow for movement of the body and its parts |
| epithelial tissue | lines the surface of organs and the cavities |
| connective tissue | the most widespread tissue in the body and is specialized to connect and support other tissues; connective tissue ranges from bones, to blood, to fat tissue. |
| marine biome | areas of salty water, such as the ocean |
| freshwater biome | areas of water that have low salt concentration , such as lakes and streams |
| desert biome | low levels of rainfall and low population densities |
| forest biome | dominated by trees and climate has a sufficient amount of rainfall and nutrients to support the large trees |
| tundra biome | areas where the temperature is very cold, such as the arctic or alpine |
| mutation | change in the nucleotide sequence of DNA |
| population size | an example of how the human population is affecting the biosphere. As human population starts to increase, we require more resources , leaving fewer for other species. |
| consumption | an example of how the human population is affecting the biosphere. the using up of a resource. |
| technology | an example of how the human population is affecting the biosphere. some produce pollutants and can have a negative effect on our ecosystem. |
| homeostasis | the relatively constant internal physical and chemical conditions that organisms maintain despite changes in internal and external environments. |
| Feedback inhibition | he process in which a stimulus produces a response that opposes the original stimulus. |
| nervous system | Recognizes and coordinates the body’s response to changes |
| integumentary system | Guards against ultraviolet light |
| immune/lymphatic system | Protects the body from disease |
| muscular system | Produces voluntary movement |
| circulatory system | Transports oxygen to cells |
| skeletal system | Protects internal organs |
| respiratory system | Brings in oxygen for cellular respiration |
| digestive system | Breaks down food |
| excretory system | Eliminates waste products from the body |
| endocrine system | Controls growth and metabolism |
| reproductive system | Produces gametes |
Created by:
jell6041
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