data test

Question 1

5 symbiotic relationships

Answer 1

mutualism
cooperation
commensalism
parasitism
ammensalism

Question 2

Mutualism

Answer 2

+/+ obligatory relationship

Question 3

Cooperation

Answer 3

+/+ presence is not essential

Question 4

commensalism

Answer 4

(+/0) one benefits where the other is not harmed

Question 5

parasitism

Answer 5

(+/-) parasite benefits, host suffers

Question 6

ammensalism

Answer 6

(0/-) one inhibits the other

Question 7

relative species abundance

Answer 7

how common/uncommon or even/uneven a species is relative to its surrounding e.g., gumtrees = abundant

Question 8

species richness

Answer 8

number of different species in an ecosystem

Question 9

percentage frequency

Answer 9

how often species occurs when a sample of the environment is taken %frequency= number of quadrats species is found/total number of quadrats

Question 10

percentage cover

Answer 10

estimate of what percentage of an enclosed area quadrat is occupied by each species

Question 11

Simpsons diversity index

Answer 11

1- Σn(n-1)/N(N-1)