Genetics Popularione Evolution And Ecosystems

Question 1

What is a niche ?

Answer 1

•A role a species plays in an ecosystem such as what they eat

Question 2

Define community and ecosystem

Answer 2

•Different populations living in same environment at same time
•Communities of organisms interacting with a habitat

Question 3

What is a specialist and generalist

Answer 3

•Species that can only survive in very specific environments conditions
•Species that can live in a wide range ig environmental conditions

Question 4

Define population

Answer 4

Group of same species in the same space at the same time that can successfully interbreed

Question 5

Define carrying capacity

Answer 5

Number of organisms that can be sustained in the environment

Question 6

What is the capture mark release equation

Answer 6

(Total caught in first sample x total caught in second sample) divided by number of recaptures

Question 7

Define succession

Answer 7

Process in which ecosystems change overtime due to changes in the environment causing plant and animal species present to change

Question 8

What are pioneer species and what happens to them

Answer 8

First species to colonise and area but eventually become out competed