Life Science
In plants and animals, what class of nucleic acid polymer is the primary form of genetic material that is heritable from one generation to the next?
DNA
Ocean waves are created by which of the following? W) Wind X) Shape of the ocean floor Y) Water depth Z) Currents
Winds
Which of the following does NOT represent a chemical reaction? W) Water falling from a tap X) Grape juice turning into wine Y) Milk turning to cheese Z) Rust forming on a nail
Water falling from a tap
Which of the following materials best prevents the flow of electricity? W) Copper X) Silicon Y) Gold Z) Distilled water
Distilled water
How many positive integers are between √3 and√82?
8
Tapeworms can infect the human digestive tract, where they grow and persist for long periods of time, causing relatively moderate symptoms such as diarrhea and anemia. Therefore, tapeworms are best described as which of the following?
W) Commensalists
X) Parasites
Y) Mutualists
Z) Parasitoids
Parasites
List the three primary layers that make up the Earth, in order of decreasing mass.
MANTLE, CORE, CRUST
Traditional incandescent light bulbs are being replaced by more energy efficient devices such as LEDs. What is the full term for the acronym LED?
Light Emitting Diode
Why is copper one of the most common materials used to make wires that carry electricity? W) Because of its dielectric properties X) Because of its perfect insulating properties Y) Because it has both conducting and dielectric properties Z) Because it is a good conductor
Because it is a good conductor
Which of the following is NOT made primarily out of glucose?
W) Maltose
X) Silk
Y) Starch
Z) Cotton
Silk
Which of the following cellular organelles does NOT contain DNA?
W) Chloroplasts
X) Mitochondria
Y) Nuclei
Z) Ribosomes
Ribosomes
Fossil continuity, coastline shape, and other geologic data support today’s continents arising from a supercontinent that existed during the late Paleozoic and early Mesozoic eras. What is the name given to that supercontinent?
Pangea
Which of the following is classified as a homogeneous [hoh-muh-JEE-nee-uhs] mixture? W) Solution X) Gel Y) Foam Z) Emulsion
ANSWER: W) SOLUTION
Which of the following units is used to describe the amount of electric current passing through a conductor? W) Volt X) Ohm Y) Ampere Z) Weber
Ampere
Our Sun is a power source that generates energy through nuclear fusion. In this process, lighter hydrogen nuclei combine to form what heavier element?
Helium
Leprosy is a bacterial disease that results in skin lesions and nerve damage. Which of the following animals is known to be a common host of this disease? W) Raccoons X) Armadillos Y) Coyotes Z) Opossums
Armadillos
Put the following four atmospheric layers in order from lowest to highest altitude: 1) mesosphere, 2) troposphere, 3) thermosphere, 4) stratosphere.
: 2, 4, 1, 3 (ACCEPT: TROPOSPHERE, STRATOSPHERE, MESOSPHERE, THERMOSPHERE)
How many protons and how many neutrons are there in carbon-13?
6 PROTONS; 7 NEUTRONS
If in a given circuit with a 4.0 ohm resistor, the potential difference across it is 12 volts, what is the current traveling through it, in amperes? W) 1 X) 3 Y) 4 Z) 48
3
What Atlantic island nation is located on top of both a hotspot and a divergent plate boundary?
Plants that are said to be non-vascular are lacking what two types of conductive tissues?
Xylem and Phloem
What is the meteorological term for the level of water vapor in a given air parcel?
Humidity
Plasma is a common phase of matter on the Sun. On Earth, however, there are very specific times and places where plasma can be found. Other than fire, whose status as a plasma is hotly debated, what natural phenomenon can generate plasma on Earth?
Lightning
Compared to almost all other types of waves, electromagnetic waves are unique because they can travel through what? W) Solids X) Plasma Y) Bone Z) Vacuum
Vacuum
Which of the following is a vitamin D deficiency disease of the young, often marked by the faulty ossification of bone? W) Rhinitis X) Rickets Y) Scurvy Z) Psoriasis
Rickets