Lesson 2: Abiotic/ Biotic factors

Question 1

What are “abiotic factors”?

Answer 1

• Abiotic factors are non-living factors which can affect a community.

Question 2

Give 7 abiotic factors which can affect a community.

Answer 2

• light intensity
• temperature
• moisture levels
• soil pH and mineral content
• wind intensity and direction
• carbon dioxide levels for plants
• oxygen levels for aquatic animals.

Question 3

What are “biotic factors”?

Answer 3

• Biotic factors are living factors which can affect a community.

Question 4

Give 4 biotic factors that can affect a community.

Answer 4

1.) Availabilty of food
2.) New predators arriving
3.) New pathogens
4.) One species outcompeting another species (leading to low numbers in the species - the numbers are no longer sufficient to breed.)