module 4 biodiversituy

Question 1

biodiversity important?

Answer 1

mantains balanced ecosystem
all species are interconnected
provides with food

Question 2

measuring biodiveresity is important in

Answer 2

consvervation, as informs which specie is present.

Question 3

how is biodiversity measured

Answer 3

genetic
species
habitat

Question 4

habitat

Answer 4

no of different species in an area

Question 5

species

Answer 5

specie richess
specie evenesssp

Question 6

specie richness

Answer 6

no of animals in an area.

Question 7

specie eveness

Answer 7

comparison of no of individuals in community.

Question 8

sampling types

Answer 8

random, opportunitstic, stratified, systemitic .

Question 9

random

Answer 9

selecting indviduals by chance, can use random number generator.

Question 10

opportunistic

Answer 10

weakest.
organisms that are availables

Question 11

stratifed.

Answer 11

divide into strata, males/females

Question 12

systemitic

Answer 12

overall habitats, move along transect line.

Question 13

sampling techniques for animals

Answer 13

pooter, sweep nets, pitfall traps, tree beating.

Question 14

pooter

Answer 14

collect small insect, through sucking mouthpiece, filter so prevent going to mouth.

Question 15

sweep nets

Answer 15

insects in grass.

Question 16

pitfall traps

Answer 16

beetles slugs, hole dug, so insects fall.

Question 17

tree beating

Answer 17

sample of invertables in trees, cloth stretched to tree.
shaken/beaten so falls.

Question 18

plants

Answer 18

sampled under quadrat, can be point or frame quadrat.

Question 19

using frame quadrats

Answer 19

density, if large enough, count no of isects by 1m/1m.
frequency-no of squares out of 100
percentage cover=eye of area that is covered

Question 20

capture/recapture

Answer 20

animals which hide, involving capturing and hiding organisms, which are marked and then released.o

Question 21

importance of genetic biodiversity

Answer 21

can adapt to changes, less likely to get extinict.
factors=
mutation, creating new allele
interbreeding, between different populations.

Question 22

to decrease genetic biodiversity

Answer 22

selective breeding
200 capitive programmes
artifical cloning
nartifical selection

Question 23

measuring genetic biodiversity

Answer 23

number of polymorphic loci/total number of loci

Question 24

factos affecting biodiversity

Answer 24

deforestation
agriculture
climate change

Question 25

reasons to make biodiversity

Answer 25

inspiration-music/books
recovery from stress or injury
conserve organisms that we use
soil erosion/deforestation
all organisms depend on each toher

Question 26

methods to maintain biodiversity