d. biotic factors

Question 1

biotic factors

Answer 1

organisms in an ecosystem that effect other organisms

Question 2

predator-prey cycle

Answer 2

shows variation in population of the predators and prey over time. Also shows the patterns and relationship leading to a subsequent change in numbers

Question 3

predator-prey numbers

Answer 3

• when a predator is taken out of a community, the population of the prey increases.
• this in turn leads to a decrease of the producers the prey eats
• since there is less food, the population of any competition of the prey will decrease
• whereas the population of the competition of the predator will increase