9. What is
BIODIVERSITY?
refers to the variety of life on
Earth, within and between all species of
animals, plants, in the context of the
ecosystems where they live.
12. 1
refers to the differences in the genetic make-up of a distinct
species and to the genetic variations within a single species. It
concerns DNA (or RNA) sequences.
GENETIC
DIVERSITY
14. 2
- simplest and most common measure of biodiversity using the
number of different species that live within a region as the
parameter.
Species
Diversity
15.
16. ENDEMIC
SPECIES
- one that is found only in a specific
region and not anywhere else in the world.
Speciesrichnessonly
considersthenumberofdifferentspeciesin
anecosystem,nottheirdistribution.
17. 3
- the variety of ecosystems, by their nature and number, where
living species interact with their environment and with each other.
ECOSYSTEM
Diversity
23. - is a natural event describing the disappearance of species from
the face of Earth when the last individual dies.
EXTINCTION
24. - on its way to being extinct. If the frequencies are at mid-levels
but the rate of reproduction is quite low.
ENDANGERED
THREATENED
25.
26. DEFORESTATION
- clearing of forest by cutting down or removing
trees in which the land will then be used for
agricultural expansion, logging, road building
and urbanization (e.g., building resorts or
subdivisions).
27.
28. MINING
- the process of extracting useful materials
from the earth. Some examples of substances
that are mined include coal, gold, or iron ore.
Iron ore is the material from which the metal
iron is produced.
31. Introduction of
exotic species
- this plays a part in changing the ecosystems
of a local environment, often displacing the
original or native species.
Anexoticspecies
isanalienorganismlivingoutsideitsnativedistributionrange.
