Chapter 1
What is an Independent Variable?
Variable that is manipulated or changed to be tested.
Which macromolecule contains genetic material such as DNA?
Nucleic Acids
What is weather?
The conditions occurring right now such as it is snowing or it is sunny out right now.
What is the primary consumer in the food chain:
Grass --> Rabbit --> Snake --> Hawk
Rabbit
A lion fish lives within the coral and uses the coral for protection. The coral is not affected. What type of symbiotic relationship does this show?
Commensalism
What is a dependent Variable
Variable that is measured based on the change made.
What is the Monomer for Proteins?
Amino Acids
What does Albedo mean?
The amount of energy reflected off of the surface back into the atmosphere
Name one way that water can get from land to the atmosphere in a Nutrient cycle
Transpiration, Evaporation
What is a Niche?
An organisms role in its habitat
What are the 8 characteristics of life?
Anything living:
1. Grows and develops 5. Requires energy
2. Reproduces 6. Homeostasis
3. Made of cells 7. Evolves
4. Responds to stimuli 8. Contains DNA
What is the name of the process where water is added to break the bonds in a polymer to create separate monomers
Hydrolysis
What does climate mean?
Climate is the average weather conditions that can be predicted. Such as in January it is usually cold.
Where does most of the energy come from originally?
The sun
Natural Disasters and weather is an example of which type of density reaction? Density Independent or Density Dependent?
Density Independent
What is a control?
A variable that stays the same in every test made.
Why are enzymes and substrates compared to a lock and key?
Enzymes fit specific substrates
Which surface would have the highest albedo? Sand or Black roof?
Sand
If the primary producer has 40,000 kcal of energy, how much energy will the secondary consumers have?
400 kcal of energy
What is a pioneer species
The start of succession, the first species to begin the habitat.
Mrs. Hilby wanted to test to see if the amount of carbon dioxide in the ocean increases when there is more sunlight. What is the Independent and Dependent variables?
Independent: Amount of sunlight
Dependent: The amount of carbon dioxide released in the ocean.
Why are enzymes important for living organisms?
They allow reactions to occur quickly enough for life
A city replaces dark asphalt roads and rooftops with lighter colored, reflective materials. Over time, the city experiences cooler summer temperatures. Explain how this change in surface color affects albedo.
Has higher albedo which reduces the amount of heat absorbed leading to cooler temperatures daily.
What is the chemical equation for Photosynthesis?
6CO2 + 6H20 + Sunlight --> C6H12O6 + 6O2
What is carrying capacity?
The maximum number of species an ecosystem can support.