What is a symbiotic relationship?
Close associations formed between pairs of species
What is the sum of all living matter on Earth?
Biosphere
Overfishing and over-harvesting are the same things
T/F
True
What is a short-term change to the environment?
A short term change is an environmental change that occurs quickly and effects organisms immediately.
What do the arrows on a food web indicate?
Name the 3 symbiotic relationships
Parasitism, Commensalism, and Mutualism
What is competition?
living things compete for the same food, shelter, mates, and other resources.
For what reasons do humans use the ocean systems?
Transportation, food, medicine, recreation
What is a long term change?
A long term change is a change to the environment that is much more gradual and allows certain species the opportunity to adapt.
An animal can be both a predator and a prey. T/F
Give one example
True
EX: A snake (predator) eats a mouse (prey), and a hawk (predator) eats the snake (prey)
What is an example of a mutualistic relationship in New Braunfels?
Answers may vary
EX: bees and flowers
What is population?
Population is all of the same species located in the same area.
What are some things that humans can do to help conserve the ocean systems?
Not litter, use less water, use less energy, and fish responsibly.
Floods, forest fires, drought, earthquakes, and volcanic eruptions are all examples of
short term environmental changes
What is a biotic factor. Example?
Abiotic: non-living
Biotic: living
Lice and Humans are an example of which type of symbiotic relationship.
Parasitism
What is an invasive species?
What is a native species?
Invasive species is an organism that is introduced to an environment that becomes overpopulated and harms its new environment.
Native species is a species that is indigenous to the region.
What is an artificial reef?
A manmade, underwater structure that promotes the growth of reef dwelling aquatic organisms.
The ice age, global warming, deforestation, and extinction of species are all examples of...
long term environmental changes
Looking at the picture below. Which animal would be the most affected if frogs were killed off?

Grasshoppers
Name an example of a commensalistic relationship in the ocean ecosystem. Explain.
Answers will vary
EX: remora fish and shark
What is succession? Give an example of primary and secondary succession.
Succession is a series of progressive change in the composition of an ecological community over time.
Primary: lava cools and creates new rock and glacier retreats and exposes new rock.
Secondary: wildfires clear the land
If the acidity in the oceans keeps increasing every year, which poses a greater threat to ocean life? Explain your answer.
A. Coral Reefs
B.Sea Turtles
C.Algae
D. Kelp
Coral Reefs- because the acid eats away at the calcium carbonate that makes up the reef.
How long does it take for something to be classified as a long term environmental change?
How long does it take for something to be classified as a short term environmental change?
1. Hundreds, thousands, or billion of years
2. Days, weeks, months, years
What animals are competing for the mouse. Explain in detail.

Owl, Fox, and Hawk