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e. An ecosystem (or ecological system) is a system that environments and their organisms form through their interaction. [ 2]: 458 The biotic and abiotic components are linked together through nutrient cycles and energy flows. Ecosystems are controlled by external and internal factors. External factors such as climate, parent material which ...
This glossary of biology terms is a list of definitions of fundamental terms and concepts used in biology, the study of life and of living organisms.It is intended as introductory material for novices; for more specific and technical definitions from sub-disciplines and related fields, see Glossary of cell biology, Glossary of genetics, Glossary of evolutionary biology, Glossary of ecology ...
Gross anatomy. Gross anatomy is the study of anatomy at the visible or macroscopic level. [ 1][ 2] The counterpart to gross anatomy is the field of histology, which studies microscopic anatomy. [ 1][ 2] Gross anatomy of the human body or other animals seeks to understand the relationship between components of an organism in order to gain a ...
An example of an ecosystem service is pollination, here by a honey bee on avocado crop. Ecosystem services are the various benefits that humans derive from healthy ecosystems. These ecosystems, when functioning well, offer such things as provision of food, natural pollination of crops, clean air and water, decomposition of wastes, or flood ...
Gross primary production (GPP) is the amount of chemical energy, typically expressed as carbon biomass, that primary producers create in a given length of time. Some fraction of this fixed energy is used by primary producers for cellular respiration and maintenance of existing tissues (i.e., "growth respiration" and " maintenance respiration ").
Net worth in this formulation does not express the market value of a firm; a firm may be worth more (or less) if sold as a going concern, or indeed if the business closes down. Net worth vs. debt is a significant aspect of business loans. Business owners are required to "trade on equity" in order to further increase their net worth. [4]
Net ecosystem production (NEP) in ecology, limnology, and oceanography, is the difference between gross primary production (GPP) and net ecosystem respiration. [1] Net ecosystem production represents all the carbon produced by plants in water through photosynthesis that does not get respired by animals, other heterotrophs, or the plants themselves.
Gross capital formation in % of gross domestic product in world economy. Gross fixed capital formation (GFCF) is a component of the expenditure on gross domestic product (GDP) that indicates how much of the new value added in an economy is invested rather than consumed.