Show:
Intro to Biology/Characteristics of Life
Nature of Science/Scientific Method/Lab Safety and Equipment
General Ecology and Relationships
Nutrient Cycles
Energy Flow in Ecosystems
100
All living things are made up of _________.
cells
100
What is the difference between an independent and dependent variable in an experiment?
independent is the one changed on purpose by the experimenter, dependent changes on its' own and is what is measured
100
What is a population?
a group of organisms of the same species living in a particular area
100
What is another term for nutrient cycles?
biogeochemical cycles
100
What is the original source of energy for all life on earth?
the sun
200
What is the difference between growth and development?
growth is an increase in mass or size, and development is a change
200
What is the purpose of a control group?
to have a "norm" or basis to compare the experimental group to
200
What is the difference between a community and an ecosystem?
a community includes all of the different living organisms or species in an area and an ecosystem includes all biotic and abiotic factors in an area
200
What process removes carbon dioxide from the air?
photosynthesis
200
Why are food webs more realistic than food chains?
most animals eat more than just one type of food and most are eaten by more than one type of consumer
300
Give an example of an organism responding to a stimulus.
varies
300
What piece of equipment would you use to measure the volume of a small amount of liquid?
graduated cylinder
300
What are symbiotic relationships? What are the 3 different kinds?
close relationships between at least 2 different organisms-mutualism, parasitism, commensalism
300
What process returns carbon dioxide to the atmosphere?
respiration
300
How much energy is transferred up each trophic level?
10%
400
Fire moves, grows, and needs oxygen. Is it living? Why or why not?
no-it is not made of cells, does not maintain homeostasis, etc. some living things move and need oxygen, but they are not one of the 7 characteristics of life
400
How should you clean glassware when you are finished with an experiment?
with warm soapy water and an appropriately sized test tube brush
400
What is mutualism? Give an example.
a symbiotic relationship that benefits both species-cleaner fish/shrimp removing parasites from a grouper
400
How is the phosphorous cycle different from the other nutrient cycles?
phosphorous doesn't exist as a gas in the atmosphere
400
Draw a food chain starting with the original source or energy for life, then producer, primary consumer, secondary consumer, and tertiary consumer.
varies
500
What is homeostasis? Give two examples of how an organism maintains homeostasis.
maintaining a stable internal environment- maintaining temperature, pH, water levels, etc.
500
What is the difference between a theory and a law?
a theory attempts to explain WHY something happens and a law describes WHAT happens under certain conditions
500
What is commensalism? Give an example.
a symbiotic relationship where one species is benefited and the other is neither helped or harmed- remora riding on whale sharks
500
What is nitrogen fixation and why is nitrogen important?
converting nitrogen gas in the air into a usable form (nitrates) for plants-nitrogen is needed to make proteins
500
In an ecological pyramid, there are always going to be fewer consumers than producers, and even fewer higher order consumers. Why is this so?
Since only 10% of energy is transferred up each trophic level, it takes a lot more producers to support primary consumers, and a lot more primary consumers to support secondary consumers, and so on.