Lab Safety
Experimental Design
Natural Selection
Ecology
100
True or False: It is okay to wear open toed shoes in the laboratory.
False; must wear closed toed shoes in the laboratory.
100
What is the variable that is being changed?
Independent Variable
100
What is a trait that increases and organisms chance of survival?
Adaptation
100
What is carrying capacity?
The maximum amount of organisms of a species the area can support.
200
What should you do before starting your experiment in the laboratory?
Read the instructions
200
What are the variables that must remain the same?
Control variables or constants
200
Natural Selections states that organisms that are adapted will ________ and _________.
Survive and Reproduce
200
Draw a graph of what logistic growth looks like and label the carrying capacity.
300
What is the first thing you should do in the laboratory if an accident occurs?
Tell the teacher
300
Before you start your experiment, you must first come up with your ....
Hypothesis
300
The Winter in Canada has changed where it is shorter by ending sooner. Rabbits change colors depending on the season. White during the winter, and brown during the other months. In order for the rabbit population to survive, what must happen?
Rabbits that turn back to brown earlier will survive and reproduce, which will cause the entire population to change/shift.
300
What are 2 factors that leads to exponential growth?
Greater birth rate than death rate, Unlimited resources/food, Low Predator Population, No competition
400
What are 3 pieces of laboratory equipment that you should wear when performing an experiment?
Googles, Apron, Gloves
400
How many variables can be tested/changed in an experiment?
One!
400
What is it called when 2 species become separated by a geographic barrier, such as a body of water or mountain range?
Reproductive Isolation (Speciation)
400
Draw a graph of what a predator/prey graph looks like and explain why their population fluctuation creates a cycle.
When the prey increases, so does the predator; Then when the predator gets to high then the prey decreases and then the predator; Now the prey increases again and repeats.
500
True or False: Wear safety goggles only when working with chemicals.
False; must wear with chemicals, fire/heat, glassware, and specimens.
500
Draw a graph and label the independent and dependent variables.
500
What are the 4 principles of Natural Selection?
Variation, Reproduction, Adaptation (favorable trait), and Change Over Time
500
What is the difference between density independent and dependent limiting factors? Give an example of each.
Den. Dep. LF are biotic/living factors that depend on population size such as predation, competition, resources, or disease.
Den. Ind. LF are abiotic/non-living factors that don't depend on population size such as weather or natural disasters.