Symbiosis

Question 1

Mutualism

Answer 1

-Both species benefit
- Both species benefit from the obligatory interaction.
Example- clown fish living in sea anemone (the protect one another). +/+

Question 2

Cooperation

Answer 2

Each species benefits from the association but the presence of one is not essential to the survival of the other.
Example- sea anemone living on the shell of crabs. +/+

Question 3

Commensalism

Answer 3

-Sometimes does not have any impact one a species at all
- One benefits while the other is not affected but it is unlikely the other is completely unaffected.
Example- Bacteria living on skin +/?

Question 4

Amensalism

Answer 4

One species inhibits the other

Example- Antibiotics inhibits the growth of bacteria.

Question 5

Parasitism

Answer 5

• Benefits 1 species
• Host is hurt by the parasite
  Example- Ticks, lice- suck blood +/-

Question 6

Predation

Answer 6

One population is eaten by another population

Example- cheetah hunting a gazelle or goats eating grass. +/-

Question 7

Competition

Answer 7

• Negative for both
  A rivalry between individuals for a specific resource. Can occur between a number of species.
  Example- Kangaroos and sheep compete for grass. -/-