Chapter 12 Flashcards
multitude of living organisms and how they interact with each other and their environment
Biodiversity
unit of heredity
Gene
group of interbreeding organisms with the same structures
Species
the physical environment to which a species has become adapted as well as its role as producer and consumer of food resources
Niche
the area where an organism lives
Habitat
formation of new organism
Speciation
the total disappearance of a species
Extinction
is the variety of life. It is the contraction of two words biological diversity
Biodiversity
Three components of Biodiversity
Genetic
Species
Ecological
refers to variation or differences in the genes of a species of individuals.
Genetic Diversity
Are segments of DNA which dictate the traits or characteristics of an organism.
Genes
Is the Is diversity of number of species. Involves a combination of species number and and their relative abundance in a particular area.
Species Diversity
Refers to a variety of ecosystems in a given region
Ecological Diversity
It is the source of our food,clothing,shelter, and medicines.
Biodiversity
The two fundamental sciences. generates knowledge and information to fully understand the importance of biodiversity for human survival.
Taxonomy and Ecology
Loss of biodiversity can be the worst end result of numerous anthropogenic activities. These activities include urbanization, construction, agricultural land development, logging, river damming and use of pesticides, herbicides and fertilizers.
Habitat Destruction
is a condition in which there is an unnatural increase in the concentrations of naturally-occurring environmental compounds such as heavy metals, radionuclides, nitrates, phosphates, cyanides, agricultural wastes, sewage, pathogens, gases, particulates and many more.
Pollution
includes exotic micro- and macro- species introduced accidentally or deliberately, to a place that is not part of their natural habitat or distributional range. Their introduction to the local community could become a threat to other organisms as they become invasive especially if they have an ecological niche similar with the native ones
Non-native species or Invasive Alien Species
The gradual increase in the world’s temperature
Global Climate Change
Any form of abuse to flora and fauna threatens biological diversity
Exploitation
Poses the greatest threat to biodiversity. the demand for all human needs and wants also increase
Overpopulation
Strategies to conserve biodiversity need realistic solution and will need to involve a multidisciplinary strategies including political, socioeconomic and scientific input.
Conserving Biodiversity
These laws never forget preserving the wellness and the betterment of the Philippine nature
Government Legislation
Techniques in Conserving Biodiversity
- Cell and Tissue culture
- Cryopreservation
- Advances in molecular biology and genetics
Allow the propagation/multiplication of organisms at a rapid pace.
Cell and Tissue Culture
Is a non-lethal storage of organelles, cells, tissues or bone biological constructs at ultra low temperature.
*Germplasm
Cryopreservation technology
Have taken a stronghold in analyzing individual strains of an organism, identify species and predict future phenotypes.
Advances in molecular biology and genetics
is how the genetic composition of species changes over time
*May be Micro or Macro
Evolution
