Question: Bile is a substance secreted to help digest fats. Bile is stored in the:
Answer: Gallbladder
Question: Which element in the protein hemoglobin, found in red blood cells, is responsible for binding oxygen?
Answer: Iron
Question: When a blood vessel is injured, which of the following is responsible for clotting?
Answer: Platelets
Question: If CaCl2 is mixed with Na2SO4 in aqueous solution, which of the following is a possible product?
Answer: NaCl
Question: The Earth is about 4.5 billion years old. About how many years ago did life first appear?
Answer: 3.5 billion years
Question: The sun’s energy reaches the Earth’s surface primarily in the form of:
Answer: Visible light radiation
Question: Which type of rock would likely be found at the bottom of a river bed?
Answer: Sedimentary
Question: Which of the following statements about the Earth is true?
Answer: The mantle makes up the largest percentage of the Earth’s volume
Question: If an unbalanced force acts on an object, then the object will begin to accelerate according to:
Answer: Newton’s Second Law
Question: In meiosis, one parent cell becomes how many daughter cells?
Answer: 4
Question: The potential energy of an object with a mass of 5kg that is placed 20 meters above the surface of the earth is most nearly:
Answer: 981 Joules
Question: One of the reasons bacteria can be so deadly is because they multiply very quickly. E. coli has a doubling time of around 15 minutes. This means that if 100 bacteria are left alone for 2 hours, they will multiply to become:
Answer: 25,600 Bacteria
Question: Organisms which help one another survive by providing a mutual benefit to each other are known as:
Answer: Symbionts
Question: In taxonomy, which classification comes after ‘family’?
Answer: Genus
Question: All of the following are phenotypic traits except for:
Answer: Missing 22nd chromosome
Question: The cell membrane is a structure composed primarily of:
Answer: Lipid
Question: Of the following layers of the atmosphere, which is the closest to the earth’s surface and contains the majority of clouds?
Answer: Troposphere
Question: Which of the following body systems is most closely associated with the immune system?
Answer: Lymphatic System
Question: One of the primary characteristics of a bacteria is its:
Answer: Lack of a nuclear membrane
Question: Which of the following planets has a perfectly circular orbit?
Answer: None
Question: Sound waves will travel the fastest in a medium that is:
Answer: The most dense
Question: A calorie is actually a measure of energy, and is equivalent to how many Joules?
Answer: 4.18
Question: What is the molecular weight of the compound C2H5O?
Answer: 45
Question: Craig ran 2.5 miles on his afternoon run. How many feet did he run?
Answer: 13,200 feet
Question: The earth’s surface is covered by approximately what percent water?
Answer: 70%
Question: Blood that flows back from the body will enter the heart through the:
Answer: Right Atrium
Question: A nerve impulse is transmitted through your nervous system primarily by:
Answer: An electric potential
Question: All magnets have two poles which can be used to predict the direction of their magnetic waves. These two poles are the:
Answer: South and North
Question: Approximately how many bones exist in the human body?
Answer: 200
Question: The nucleus of an atom is composed of:
Answer: Protons and neutrons
Question: What is the second most abundant gas in the atmosphere?
Answer: Oxygen
Question: As light passes through a substance, the incident angle changes, meaning the light’s entering angle is different than its exiting angle. This is an example of:
Answer: Refraction
Question: If one tectonic plate slides under another, the process is known as:
Answer: Subduction
Question: Carbon dioxide can be consumed and converted into glucose by what type of organism?
Answer: Plants
Question: Two separate weather fronts will have air that is of different:
Answer: Density
Question: Plants are autotrophs, meaning that they:
Answer: Are able to produce their own food
Question: Plant and animal cells both have cell membranes and nuclear membranes. However, plant cells have a structure that animal cells do not, known as a:
Answer: Cell Wall
Question: Muscles in the human body require what energy compound to function?
Answer: ATP
Question: When a human cell divides in mitosis, the two daughter cells will each have:
Answer: 46 Chromosomes
Question: In an electromagnetic wave, as the frequency of the wave becomes greater, what becomes shorter?
Answer: The wavelength
Question: Which of the following time periods is the longest?
Answer: Eon
Question: In the lily flower, the red color is dominant and the white color is recessive. This means that if you cross a homozygous red flower with a white one, the offspring will be:
Answer: All red
Question: Which of the following is a characteristic of the tundra ecological biome?
Answer: Landscape dominated by shrubs and short trees
Question: A train travels at 25 mph for 3 hours. How far did the train move?
Answer: 75 miles
Question: A solution contains 0.1 molar hydrogen ions (H+). This means the solution is likely:
Answer: Around pH 1
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