The struggle between organisms to survive as they attempt to use the same limited resource.
What is Competition
100
What is the form of symbiosis in which both species benefit?
What is Mutualism
100
Give an example of herbivory.
A cow eats grass...
100
What population factor is defined as organisms moving into a new area?
What is immigration
100
If the hawk population increases, what will happen to the snake population?
Increase.
200
This is an interaction in which an organism kills another for food.
What is Predation
200
When barnacles attach to whales in order to gain a ride to food, and whales are not effected by this interaction then this form of symbiosis is known as....
What is Commensalism
200
Give an example of a consumer.
Mouse...
200
If the birth rate is higher than the death rate then will the population increase or decrease?
What is increase
200
Humans have killed off the natural predators of deer. What has happened to the deer population because of this?
The deer population has increased.
300
What is the organism that does the killing for food.
What is Predator
300
What form of symbiosis includes a species that benefits and a species that is harmed?
What is Parasitism
300
Give an example of a producer.
Grass...
300
What population factor is defined as organisms moving away from an area?
What is emigration
300
Give an example when one species takes over the space of another species causing the population of the second species to decline.
Purple loosestrife compete with cattails.
400
What is the organism that is killed for food?
What is Prey
400
When a crocodile has its teeth cleaned by a crocodile bird, and the crocodile bird gains a free meal then what kind of symbiosis is occuring?
What is Mutualism
400
Give an example of cannibalism.
Female praying mantis eats the male praying mantis...
400
If 800 rabbits die in one year and in the same year 600 rabbits are born, then will the population increase or decrease?
What is decrease
400
If the population of frogs increase, explain how that will affect a different population.
The bird population will increase...
500
What are the three major types of interactions among organisms?
What is Competition, Predation, and Symbiosis
500
What is it called when one organism benefits and the other is not affected?
What is Amensalism?
500
Give an example of a decomposer?
Mushroom...
500
What are the four factors that can change population size?
What is birth rate, death rate, immigration, emigration
500
Give two examples of when humans have affected the population of another organism. One example should be a positive one, one should be a negative one.