Biology Final Essay Q's

Question 1

Definition of symbiosis?

Answer 1

The relationship between two organisms where one or both benefits.

Question 2

Three specific examples in 2nd Essay Question

Answer 2

Conserving water, not all bacteria are bad, and taking care of ecosystems and animals

Question 3

What is parasitism?

Answer 3

Symbiotic relationship where one benefits but the host is harmed.

Question 4

What is commensalism?

Answer 4

One species benefits, other not affected. Some scientists say there is no such thing as commensalism.

Question 5

What is mutualism?

Answer 5

Both species benefit.

Question 6

Example of mutualism?

Answer 6

Oxpeckers pick bugs and parasites off for zebras; oxpeckers get food.

Question 7

Example of parasitism?

Answer 7

Roundworms catch rides in humans and animals, using the host to stay alive and reproduce, but causes disease. Usually caught in places with bad hygiene.

Question 8

Example of commensalism?

Answer 8

Hermit crabs pick up shells of snails once they die, providing a home for the crabs.

Question 9

Why is symbiosis important?

Answer 9

Reminder that what humans do matters (circle of life), and that species depend on one another. Interconnected.