Biodiversity

Question 1

biodiversity

Answer 1

.variety of living organisms

Question 2

species diversity

Answer 2

.number of species in a community

Question 3

habitat diversity

Answer 3

range of different habitats

Question 4

genetic diversity

Answer 4

variety of alleles within a species

Question 5

species richness

Answer 5

number of species in an area

Question 6

species eveness

Answer 6

.what species have similar populations

Question 7

random sampling

Answer 7

.no system
.aim to be representative

Question 8

opportunustic sampling

Answer 8

.what is encountered first is taken

Question 9

stratified sampling

Answer 9

.population is divided into smaller groups based on characteristics and then are sampled

Question 10

systematic sampling

Answer 10

.follows a structure

Question 11

importance of sampling

Answer 11

.we cant study the whole population
.so using sampling allows us to investigate the population easier

Question 12

Simpsons index of diversity

Answer 12

N(N-1)/n(n-1)

N = total num of a species
n = total num of all species

Question 13

factors of biodiversity

Answer 13

population growth
deforestation for agriculture
climate change affecting habitats

Question 14

reasons to maintain biodiversity

Answer 14

ecological - protecting species, maintaing resources
economic = reducing soil depletion
aesthetic = protecting landscapes

Question 15

conservation

Answer 15

protection and management of species and habitats to maintain biodiversity

in-situ - in an organisms habitat

ex-situ - outside an organisms habitat

Question 16

in-situ conservation examples

Answer 16

.marine conservation zones
.wildlife reserves

Question 17

ex-situ conservation

Answer 17

.seed banks
.botanic gardens
.zoos

Question 18

agreements made with aim of protecting species and habitats

Answer 18

CITES
CBD
CSS