lab safety
When should you wear lab safety goggles?
Whenever you are doing a lab but especially when dealing with chemicals or heating up substances.
Define Predator
An animal that hunts other animals for food, ex. Lions, hyenas
Explain how zebra mussels are an example of an invasive species.
Zebra mussels outcompete the native mussels for food and space, and because of their fast reproduction can quickly overwhelm a water system.
What types of shoes should you wear in the lab?
Closed toe shoes (like sneakers)
define Invasive Species
a plant or an animal from another ecosystem that gets into a new ecosystem and causes harm
why do animals travel together
Animals travel together in herds as a way of protecting the majority including very young and old.
What should you do if you don’t understand a part of the lab?
Ask a teacher for help
Define Ecosystem?
All of the living (biotic) and non-living (abiotic) things in an area
Why are invasive species like zebra mussels harmful to an environment?
Zebra mussels are filter feeders; they are highly efficient at this, and a large population of mussels can quickly clear the water of almost all floating particles. This can cause shifts in local food webs, both by robbing food from native species that feed on plankton and also by increasing water clarity and thus making it easier for visual predators to hunt
If you see glass on the floor what do you do?
You get the teachers attention and make sure he cleans it up
Define Law/Rule of 10%
Only 10% of energy can be passed up from each trophic level; energy is lost as heat or was already “used” for growth/homeostasis/etc at the previous levels
What are some populations DIRECTLY and INDIRECTLY affected by zebra mussels?
Directly: plankton and algae which are eaten by zebra mussels
Indirectly: seagulls, trout and birds whose food is negatively impacted by zebra mussels eating algae and plankton
True or false.
Do you rub your eyes after coming in contact with chemicals?
False :(
Define Food chain
a single series of prey-predator interactions (See below for examples)
explain a group behavior that an animal performs, and how it helps them survive.
Hunting in packs or prides reduces individual risk of injury, allows them to take down larger prey items, and can ensure that all members are able to eat.
what is the slope of a line with the coordinates (0, 0) and (6, 7 )
m= 1.7