Lesson 2 - Abiotic And Biotic Factors

Question 1

Biotic factors

Answer 1

the living/biological factors in a ecosystem

Question 2

Abiotic factors

Answer 2

the non living/physical factors in a ecosystem

Question 3

Impact of Food availability

Answer 3

plenty of food means successful breeding, food shortage leads to animals struggling and often do not breed

Question 4

Impact of Pathogens and parasites

Answer 4

an emergence of new pathogens/parasites, organisms have no resistance to the disease, can potentially damage or wipe out entire populations

Question 5

Impact of Predators

Answer 5

organisms may have no defences against new predators and can potentially be wiped out

Question 6

Impact of Interspecific competition

Answer 6

competition between species, new species may our compete another where the number become too low for successful breeding

Question 7

List some abiotic factors:

Answer 7

Moisture levels
Wind intensity
Oxygen availability
Carbon dioxide availability
Light intensity
Temperature
Soil pH & Mineral content

Question 8

Invasive species

Answer 8

an organism that causes ecological or economic harm in a new environment where it is not native

Question 9

Invasive species may:

Answer 9

Grow quickly
Spread rapidly
Be highly adaptable
Be tougher than our native species

Question 10

Problems with invasive species

Answer 10

Eat our native species
Compete for food or resources
Spread disease
Damage habitats
Block waterways and cause flooding