Chapter 10 - Biodiversity

Question 1

Define Population

Answer 1

All organisms of one species in a habitat

Question 2

Define Community

Answer 2

All of the populations of all the species in a habitat

Question 3

Define Biodiversity

Answer 3

The variety of species in an area

Question 4

Define Species Richness

Answer 4

The number of species in an area

Question 5

What does The index of Diversity describe?

Answer 5

The relationship between number of species in a community + the number of individuals in each species

Question 6

What does d represent in The IOD equation?

Answer 6

Index of Diversity

Question 7

What does N represent in the IOD equation?

Answer 7

total number of organisms in all species

Question 8

What does n represent in the IOD equation?

Answer 8

total number of individuals of each species

Question 9

What are the effects of farming on biodiversity?

Answer 9

forests/ hedgerows cleared, monoculture, fewer species, fewer food sources, fewer niches

Question 10

What can farmers implement to increase conservation?

Answer 10

plant more hedgerows, protect by law, restrict urban development

Question 11

What is competition within a species called?

Answer 11

Intraspecific competition

Question 12

What is competition between species called?

Answer 12

Interspecific competition

Question 13

How can we compare species?

Answer 13

DNA/mRNA/amino acid sequences, observe similarities/ differences

Question 14

Why should we have a large sample size?

Answer 14

to ensure it is representative and enables us to do a statistical test

Question 15

Why should we select randomly?

Answer 15

avoid bias

Question 16

What does Standard Deviation show?

Answer 16

The average variation of data away from the mean

Question 17

Define Species

Answer 17

a group of similar organisms that can reproduce fertile offspring

Question 18

How does courtship behaviour increase the chance of successful breeding? Give example

Answer 18

ensures species recognition, stimulates release of gamete. recognise opposite gender, indicates sexual maturity. Bower Bird

Question 19

What is phylogenetic classification?

Answer 19

arranging in groups based on evolutionary relatedness

Question 20

Define a taxonomical hierarchy

Answer 20

small groups within larger groups (no overlap)

Question 21

What is the order of classification?

Answer 21

Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species

Question 22

What is the binomial naming system?

Answer 22

universal naming system eg) Homo (genus) sapiens (species)

Question 23

How can we determine how related 2 species are?

Answer 23

Genome sequencing, immunology (antibodies match up indicates similar proteins coded for)