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

What was the ruling of Brown v. Board of Education in 1954?

It ruled that separate educational facilities are inherently unequal.

What did the Supreme Court decide in Brown v. Board of Education?

The Supreme Court decided that segregation in public schools was unconstitutional.

What was the significance of the Brown v. Board of Education case?

It played a key role in the American civil rights movement by declaring the legality of racial segregation in public schools was in violation of the 14th Amendment.

What legal doctrine was overturned by the Brown v. Board of Education decision?

The 'separate but equal' doctrine established by Plessy v. Ferguson.

In what year was the Brown v. Board of Education decision made?

The decision was made in 1954.