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Biology I
Biology II
TOSS UP
Phys Science I
Phys Science II
100
Which of the following fields of biology focuses on the interactions among various species with each other and their environment? A anatomy B genetics C biochemistry D ecology
D ecology
100
Biology is the study of A science B molecules C life D animals
C life
100
Two groups of scientists study the same data on the likely-hood of getting candy from Mr. Boeck or Ms. Miller. Which statement explains how the two groups may reach different logical conclusions? A Scientists change data to fit their hypothesis B Scientists have different backgrounds and so will interpret data differently C Some scientists like Ms. Miller better than Mr. Boeck, and some scientists like Mr. Boeck better than Ms. Miller D One group didn't like the other group
B Scientists have different backgrounds and so will interpret data differently
100
In order to determine the speed of an object, what measurements must be made? A distance and direction B distance and mass C time, distance, and volume D distance and time
D distance and time
100
The number of protons in a neutral atom is equal to the number of A electrons B neutrons C ions D isotopes
A electrons
200
A type of cell that can exist in a broad range of environmental conditions, can rapidly multiply, and lacks a nucleus is known as what type of cell? A animal B eukaryotic C plant D prokaryotic
D prokaryotic PRO - NO (no nucleus)
200
Homeostasis is the maintenance of stable conditions within the body. Which of the following is a method of maintaining homeostasis in the human body? A working in air conditioning B shivering when cold C eating balanced meals D sleeping regularly
B shivering when cold
200
A scientist identifies a gene that is related to certain physical disorder. What step should the scientist take to make this information to the medical community? A inform the news media about the gene B visit hospitals to explain the discovery C publish the information in a peer-reviewed journal D write a computer program that shows how the gene is related to the disorder
C publish the information in a peer-reviewed journal
200
Albert stirs a mug of hot chocolate with a metal spoon. What type of heat transfer is responsible for the spoon getting hot? A conduction B convection C thermoelectric D radiation
A conduction
200
Radioactive isotopes are commonly used as A cooling agents B agricultural pesticides C nutritional supplements D tracers in biochemical reactions
D tracers in biochemical reactions
300
The process by which the order of bases in messenger RNA (mRNA) codes for the order of amino acids in a protein is called A translation B transcription C replication D nondisjunction
A translation DNA --- transcription --- RNA --- translation --- AMINO ACIDS
300
Which of the following shows how information is transformed to make a protein? A DNA → RNA → protein B gene → chromosome → protein C cell respiration → ATP → protein D ATP → amino acid → protein
A DNA → RNA → protein
300
Which of the following is an example if a scientific question? A Does adding sugar to water keep flowers fresh? B Which flowers are prettier, daisies or roses? C Do cats make better pets than dogs? D Should friendly people be treated more politely than unfriendly people?
A Does adding sugar to water keep flowers fresh?
300
Which of the following is a chemical property of iodine? A violet as a gas B silver-black as a solid C reacts with starch to give a dark blue color D a solid at room temperature
C reacts with starch to give a dark blue color
300
An aluminum bar was found to have a mass of 27 g. Using water displacement, the volume was measured to be 10 mL. What is the density of the aluminum? A 270 g/mL B 270 g C 2.7 g/mL D 2.7 g
C 2.7 g/mL Density = Mass/Volume 2.7 g/mL = 27g/10mL
400
Predators often feed on weak or sick animals in an ecosystem. The role of the predator is described as its A community B habitat C niche D population
C niche
400
The major source of the oxygen that is released into the atmosphere is A cellular respiration B photosynthesis C automobile exhaust D the weathering of rocks
B photosynthesis
400
Derrick wants to conduct an investigation to determine which liquid clothes detergent cleans best. What tools will he need to conduct his investigation? A beaker, graduated cylinder, stirring rods, and safety goggles B calculators, petri dishes, and test tubes C computer probes, spring scales, and timing devices D microscopes, thermometers, and balances
A beaker, graduated cylinder, stirring rods, and safety goggles
400
A piece of blue paper appears blue because the paper A reflects all colors of light except blue B refracts all colors of light except blue C absorbs all colors of light except blue D is transparent to all colors of light except blue
C absorbs all colors of light except blue
400
Which of the following are transferred or shared when two atoms react chemically? A protons B neutrons C electrons D photons
C electrons
500
Humans have had a tremendous impact on the environment. What has caused an increase in the amount of acid rain? A use of chlorofluorocarbons B use of pesticides C coal burning power plants D nuclear power plants
C coal burning power plants
500
Why do some strains of bacteria become resistant to antibiotics? A the bacteria develop a method of surviving without energy B through natural selection, some bacteria develop an adaptation that enables them to survive in the presence of antibiotics C the bacteria grow in habitats protected from antibiotics D Bacteria that live in host organisms are not affected by antibiotics
B through natural selection, some bacteria develop an adaptation that enables them to survive in the presence of antibiotics
500
Scientists often repeat one another's experiments. Why is this an important step in the scientific process?
It allows scientists to test one another's hypotheses and results
500
Shaina uses a shovel to dig a hole to plant a tree. A shovel is an example of a machine because it is made up of what two simple machines? A wheel and axle and lever B lever and wedge C screw and wedge D inclined plane and wedge
B lever and wedge
500
A force (F1) is required to pull a 20-kg box across a carpeted floor. What is typically true about the force (F2) required to pull the box across the ice at a rink? A F1 is greater than F2. B F1 is less than F2. C F1 equals F2 but both are less than 20 kg. D F1 equals F2 and both are equal to 20 kg.
A F1 is greater than F2.