Ecology
Define Ecology.
Study of how living things interact with each other and with their environment.
What is a trophic level?
The step or position in a food chain or food web that shows how energy and nutrients flow through an ecosystem
False
When water falls from the sky its called what?
Precipitation
What is Mr. Hackett's favorite pass time?
Fishing
Which of the following describes a population?
All the organisms of one species in one area
True or False: Energy gets recycled after it reaches the top level predators / decomposers.
We draw them as energy moves through the ecosystem. Pointed towards the organism that consumes the other until we reach the top level predator or decomposers.
What is the difference between climate and weather?
Weather is a short term measure of abiotic factors such as wind, precipitation, temperature. Climate is long term trends in a specific geographic location.
Hermit crabs rely on the discarded shells of dead sea snails (gastropods) to protect their soft bodies. The crab benefits by getting free housing, while the dead snail is no longer in need of the shell.
What type of symbotic relationship is this?
Commensalism
How much energy gets transferred as it flows to the next succeeding level?
10%
What is an Autotroph?
What biome do we live in?
Temperate Deciduous Forest
What is one of the fish that peacefully passed and had signs made for them from our eco-jars?
Alberto or Gary
Name 3 abiotic factors in an ecosystem.
Sunlight, water, pH, soil, minerals, air / composition
You have 4,000 KJ of energy at your 1st trophic level. How much would you have at your 3rd?
40 KJ
Tapeworms get food by eating the host's (animal) partly digested food, depriving the host (animal) of nutrients. Which type of symbiotic relationship is this?
Parasitism
What two other classes does Mr. Hackett teach?
Geology and Astronomy
What is a niche?
The role an organism occupies in an environment.
It shows how energy decreases at each trophic level as you move up the food chain.
How many organisms are represented in a food chain? Why?
4 maybe 5. Because we only get 10% of energy to transfer through each trophic level. If we had more levels there wouldn't be enough useful energy.
Put the steps of the nitrogen cycle in order (starting with Nitrogen in the air) *order from top to bottom
Assimilation
Nitrification
Nitrogen fixation
Nitrogen Fixation -> Nitrification -> Assimilation
What famous person did Mr. Hackett's cousin used to date?
Lauv