What is state problem, gather information, hypothesis, experiment, result, conclude, publish or repeat
100
How does an autotroph differ from a heterotroph?
autotroph makes their own food, heterotroph does not
100
What do the arrows represent in a food chain or web?
flow of energy
100
What is a trophic level?
Step in the food chain
100
What element do all organic compounds contain?
carbon
200
How do you calculate magnification on the microscope?
Multiply eyepiece x objective
200
What organisms are decomposers?
bacteria, mushrooms
200
What is the difference between a food web and a food chain?
A food web is a lot of overlapping food chains
200
Give examples of biotic and abiotic factors.
Biotic- living, tree
Abiotic- nonliving,rock
200
What are the 4 organic compounds?
Carbohydrates, Lipids, Proteins, Nucleic Acids
300
Define 2 of the following:
a) Dependent/Responding variable
b) Independent variable/Manipulated Variable
c) Hypothesis
d) Control
a) variable that changes bc of the manipulated
b) varibale that is deliberately changed
c) educated guess of the outcome of the experiment
d) variable that stays the same
300
What is the job of decomposers?
Break down dead organic matter and return nutrients to the soil
300
Define succession & name the 2 types of succession
Series of changes that occur in an ecosystem after a natural disaster.
Primary & Secondary
300
How does the flow of matter differ from the flow of energy in the biosphere?
Matter is recycled & energy is used or lost as heat.
300
What are the functions of 3 of the 4 major organic compounds:
Carbohydrates- provide long term energy
Lipids- insulate, store energy
Proteins- make enzymes, immunities, control body activities.
Nucleic Acids- genetic information
400
What are the units for each of the following and what instruments are used to measure each?
a) Volume
b) Mass
c) Length
a) ml- graduated cylinder
b) grams- balanace
c) meter- ruler, meterstick
400
Describe the following relationships:
a) Commensalism
b) Mutualism
c) Parasitism
d) Predator-prey
a) one benefits, the other is unaffected.
b) both organisms benefit
c) one lives on or near the other and feeds off of it (parasite)
d) one kills and eats the other.
400
What is the cause of Global Warming?
Human activities, such as burning fossil fuels and cutting down/burning forests, that add carbon dioxide into the atmosphere faster than the carbon cycle can remove it.
400
What is a limiting factor?
Anything that keeps an organism from reaching its biotic potential
400
What is the function of an enzyme?
Speed up chemical reactions by lowering the activation energy
500
What are the levels of organization in biology?
cell, tissue, organ, organ system, organism, population, community, ecosystem, biosphere
500
What is the cause of acid rain?
sulfur dioxide (SO2) and nitrogen oxides (NOx)
500
Define each cycle below and what happens in each:
a) water cycle
b) carbon cycle
c) nitrogen cycle
a) water- movement of water through the atmosphere.
b) carbon- cycling of carbon between plants, animals and the atmosphere.
c) nitrogen- cycling of nitrogen between consumers, producers and decomposers.
500
What is the difference between a logistic and an exponential growth curve?
Logistic- more logical growth pattern in a population. There is a carrying capacity, curve is an S.
Exponential- not logical. The population continues to grow. Only happens if there is no limit to resources. J curve.