Ecology

Question 1

Habitat

Answer 1

The area in which an organism lives

Question 2

Carrying capacity

Answer 2

An ecosystem supports a certain size of population of a species

Question 3

Community

Answer 3

All of the populations of all the different species living in a habitat at a given time

Question 4

Ecosystem

Answer 4

All of the organisms in a community and the abiotic conditions in the area where they live

Question 5

Niche

Answer 5

Role of a species in its habitat

Question 6

Parasites feed on larger hosts harming them. How and why might a large number of parasites effect population size of the host?

Answer 6

The population size would decrease as the host would expend more energy in overcoming the effects of the parasite so have less energy available for production of gametes etc for reproduction

Question 7

Mark release recapture equation

Answer 7

Estimated population size = number caught in 1st sample x number caught in 2nd sample / number marked in second sample