Biodiversity
What is it called when humans select for a trait they want to appear in a species' offspring?
Artificial Selection
What are the three elements present in washing soda, Na2CO3?
Sodium, Carbon, Oxygen
Which element is found in all organic substances?
Carbon (C)
True or false: nuclear power is a source of renewable energy
false
Which planet has more moons: Neptune or Mercury?
Neptune
Height in humans would be considered to be what kind of a trait? (Choose 2: heritable, non-heritable, continuous, discrete)
heritable, continuous
Which group of elements on the periodic table has the least reactive elements?
Group 18 or Nobel gasses
What is the function of Carbohydrates in the human body?
they are an immediate source of energy
What two things does a cell need to function?
Electrodes and an electrolyte
Which type of telescope uses mirrors to enlarge images?
Reflecting telescopes
What is one benefit to sexual reproduction?
Increases genetic diversity
What type of compound is water?
Molecular
What is one of the main contributing factors to an algal bloom?
Fertilizers (excess nitrogen)
What is the power of a device that has voltage of 100 V, Current of 4A, and Resistance of 25 Ohms?
400 W
What would be the best technology to find out information about Uranus?
Space probes
If Labrador retrievers have 78 chromosomes in each of their muscle cells,
which biological process ensures that a male Labrador retriever's sperm cells will each have 39 chromosomes?
Meiosis
In an experiment, 12.0 g of solid carbon, C(s), reacted with oxygen gas, O2(g), to form 44.0 g of carbon dioxide gas, CO2(g). If all 12.0 g of carbon reacted, how many grams of oxygen reacted with the carbon?
32.0 g
What is the pH of a substance that turns red litmus paper red, and blue litmus paper blue?
7 (or neutral)
What is the energy efficiency of a device that has an input energy of 520J and an output energy of 260J?
50%
What is the name of the coordinates we use to determine the location of celestial objects?
altitude or Azimuth
When a plant that produced round seeds is mated with a plant that produced wrinkled seeds, the resulting offspring produced only round seeds. The wrinkled seed trait would considered to be what?
a recessive trait
What is the chemical formula for Aluminum oxide?
Al2O3
Lethal dose at 50% - half of a group of test organisms die when exposed to the toxin
What happens to the voltage between lightbulbs in a series circuit?
The voltage is divides among the components (V1+V2+...VN)
What type of orbit do planets take around the sun?
Elliptical